Caernarfon (UK Parliament constituency)

Known as Carnarvon until 1832, and then as the Carnarvon Boroughs or Carnarvon District of Boroughs from 1832 to 1950 and as Caernarvon from 1950 to 1983, it is named after Caernarfon, the main town within the constituency. Its most famous member was David Lloyd George, who was MP for 55 years. When Lloyd George became prime minister in 1916 it became the first Welsh constituency to be represented by a serving prime minister.

Plaid Cymru held the seat continuously from 1974 until its abolition in 2010, longer than they have held any other seat.

The constituency names, in this section, follow the format and the spelling used by F. W. S. Craig in his British Parliamentary Election Results series. Variations may be found in other sources.

On the basis of information from several volumes of the History of Parliament, it is apparent that the history of the borough representation from Wales and Monmouthshire is more complicated than that of the English boroughs.

The Laws in Wales Act 1535 (26 Hen. 8. c. 26) provided for a single borough seat for each of 11 of the 12 Welsh counties and Monmouthshire. The legislation, which was passed in 1536 (using the modern civil year starting on 1 January), was ambiguous as to which communities were enfranchised. The county towns were awarded a seat, but this in some fashion represented all the ancient boroughs of the county, as the others were required to contribute to the member's wages. It is not clear if the burgesses of the contributing boroughs could vote. The only election under the original scheme was for the 1542 parliament. It seems that only burgesses from the county towns actually took part. The Parliament Act 1543 (35 Hen. 8. c. 11) confirmed that the contributing boroughs could send representatives to take part in the election at the county town. As far as can be told from surviving indentures of returns, the degree to which the out boroughs participated varied, but by the end of the 16th century all the seats had some participation from them at some elections at least.

The original scheme was modified by later legislation and decisions of the House of Commons, which were sometimes made with no regard to precedent or evidence: for example in 1728 it was decided that only the freemen of the borough of Montgomery could participate in the election for that seat, thus disenfranchising the freemen of Llanidloes, Welshpool and Llanfyllin.

In the case of Caernarvonshire (now Caernarfonshire), the county town was Caernarvon (now known as Caernarfon). The out boroughs were Conway (now Conwy), Criccieth (or Cricieth), Nevin (now known as Nefyn), and Pwllheli. The freemen of the five boroughs were entitled to vote. In the 1715–1754 period there were estimated to be about 1,600 freemen, of whom about 1,200 were non-resident. Later in the 18th century the estimated electorate was about 1,000 freemen.

The Caernarvon Boroughs was a district of boroughs constituency, which grouped a number of parliamentary boroughs in Caernarvonshire into one single member constituency. The voters in each participating borough cast ballots, which were added together over the whole district to decide the result of the poll. The enfranchised communities in this district, from 1832, were the six boroughs of Caernarvon, Bangor, Conway, Criccieth, Nevin, and Pwllheli.

The exact boundaries of the parliamentary boroughs in the district were altered by the Boundary Act 1868, but the general nature of the constituency was unchanged. There were no further boundary changes in the 1885 redistribution of parliamentary seats.

In 1918 the constituency was redefined, to include the then local government areas of the Municipal Boroughs of Bangor, Caernarvon, Conway, and Pwllheli; the Urban Districts of Criccieth, Llandudno, Llanfairfechan and Penmaenmawr, as well as the parish of Nevin.

From 1918 to 1950 the administrative county of Caernarvonshire was divided into two seats: Caernarvon Boroughs and a Caernarvonshire county constituency. The territory of the borough seat was enclaved within the county constituency. Different local authorities, included in the borough constituency, were not necessarily adjoining.

The redistribution, which took effect in 1950, created two Caernarvonshire county divisions – Caernarvon in the south-western two thirds of the county and Conway (later spelt Conwy) in the north-eastern third. The new divisions included territory which had come from both of the two old seats.

The local authorities, whose territories were combined to form the constituency in 1950, were the Municipal Boroughs of Caernarvon, and Pwllheli; the Urban Districts of Criccieth, and Portmadoc; as well as the Rural Districts of Gwyrfai and Lleyn. This arrangement was not altered by the redistribution which took effect in February 1974, which was based on the pre-1974 local government boundaries.

From 1 April 1974, a new pattern of counties was created in Wales. This constituency became part of the county of Gwynedd.

In the redistribution of 1983, the spelling of the official name of the constituency was changed. The constituency boundary was unchanged, but it was redefined in terms of the local authorities created in 1974. It comprised the Borough of Arfon wards numbered 8 to 12 and 16 to 29, together with the District of Dwyfor.

In 1996 Welsh local government was again reorganised. Arfon and Dwyfor became part of a Gwynedd unitary authority.

The Parliamentary Constituencies (Wales) Order 1995, based on the pre-1996 local authority areas, came into effect in 1997. It defined this constituency as:-

(i) The following wards of the Borough of Arfon, namely, Bethel, Bontnewydd, Cadnant, Deiniolen, Llanberis, Llandwrog, Llanllyfni, Llanrug, Llanwnda, Menai (Caernarfon), Peb-lig, Penisarwaun, Penygroes, Seiont, Talysarn, Waunfawr and Y Felinheli; and

(ii) the District of Dwyfor.

Following radical boundary changes undertaken by the Boundary Commission for Wales, this seat was abolished in time for the general election in 2010, replaced by Arfon and part of Dwyfor Meirionnydd.

File:Caernarfon election history.png

{{Election box begin no change| title=General election 1830: Caernarfon{{cite web |last1=Escott |first1=Margaret |title=Caernarvon Boroughs |url=http://www.historyofparliamentonline.org/volume/1820-1832/constituencies/caernarvon-boroughs |website=The History of Parliament |access-date=4 May 2020}}}}

{{Election box winning candidate unopposed with party link|

|party = Tories (British political party)

|candidate = William Ormsby-Gore

}}

{{Election box gain with party link no swing|

|winner = Tories (British political party)

|loser = Whig (British political party)

}}

{{Election box end}}

{{Election box begin no change | title=General election 1831: Caernarfon}}

{{Election box winning candidate with party link no change|

|party = Whigs (British political party)

|candidate = Charles Paget

|votes = 274

|percentage = 50.9

}}

{{Election box candidate with party link no change|

|party = Tories (British political party)

|candidate = William Ormsby-Gore

|votes = 264

|percentage = 49.1

}}

{{Election box majority no change|

|votes = 10

|percentage = 1.8

}}

{{Election box turnout no change|

|votes = 538

|percentage =

}}

{{Election box gain with party link no swing|

|winner = Whigs (British political party)

|loser = Tories (British political party)

}}

{{Election box end}}

{{Election box begin | title=General election 1832: Caernarfon}}

{{Election box winning candidate with party link|

|party = Whigs (British political party)

|candidate = Charles Paget

|votes = 410

|percentage = 53.0

|change = +2.1

}}

{{Election box candidate with party link|

|party = Tories (British political party)

|candidate = Owen Jones Ellis Nanney

|votes = 363

|percentage = 47.0

|change = −2.1

}}

{{Election box majority|

|votes = 47

|percentage = 6.0

|change = +4.2

}}

{{Election box turnout|

|votes = 773

|percentage = 90.4

|change =

}}

{{Election box registered electors|

|reg. electors = 855

}}

{{Election box hold with party link|

|winner = Whigs (British political party)

|swing = +2.1

}}

{{Election box end}}

• On petition, the election of Paget was declared void and Nanney was declared elected. The returning officer had included votes at Pwllheli which were not eligible, and these were deducted, leading to Nanney receiving 353 votes and Paget 343 votes. On a further petition, Paget was declared elected instead of Nanney.

{{Election box begin | title=General election 1835: Caernarfon}}

{{Election box winning candidate with party link|

|party = Whigs (British political party)

|candidate = Love Jones-Parry

|votes = 378

|percentage = 51.9

|change = −1.1

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = Owen Jones Ellis Nanney

|votes = 350

|percentage = 48.1

|change = +1.1

}}

{{Election box majority|

|votes = 28

|percentage = 3.8

|change = −2.2

}}

{{Election box turnout|

|votes = 728

|percentage = 79.4

|change = −11.0

}}

{{Election box registered electors|

|reg. electors = 917

}}

{{Election box hold with party link|

|winner = Whigs (British political party)

|swing = −1.1

}}

{{Election box end}}

{{Election box begin | title=General election 1837: Caernarfon}}

{{Election box winning candidate with party link|

|party = Conservative Party (UK)

|candidate = William Bulkeley Hughes

|votes = 405

|percentage = 51.3

|change = +3.2

}}

{{Election box candidate with party link|

|party = Whigs (British political party)

|candidate = Charles Henry Paget

|votes = 385

|percentage = 48.7

|change = −3.2

}}

{{Election box majority|

|votes = 20

|percentage = 2.4

|change =

}}

{{Election box turnout|

|votes = 790

|percentage = 71.9

|change = −7.5

}}

{{Election box registered electors|

|reg. electors = 1,099

}}

{{Election box gain with party link|

|winner = Conservative Party (UK)

|loser = Whigs (British political party)

|swing = +3.2

}}

{{Election box end}}

{{Election box begin | title=General election 1841: Caernarfon}}

{{Election box winning candidate with party link|

|party = Conservative Party (UK)

|candidate = William Bulkeley Hughes

|votes = 416

|percentage = 51.8

|change = +0.5

}}

{{Election box candidate with party link|

|party = Whigs (British political party)

|candidate = George Paget{{cite news |title=General Election |url=https://www.britishnewspaperarchive.co.uk/viewer/bl/0000174/18410705/003/0002 |access-date=12 August 2019 |work=Morning Post |date=5 July 1841 |page=2 |via = British Newspaper Archive |url-access=subscription}}

|votes = 387

|percentage = 48.2

|change = −0.5

}}

{{Election box majority|

|votes = 29

|percentage = 3.6

|change = +1.2

}}

{{Election box turnout|

|votes = 803

|percentage = 78.6

|change = +6.7

}}

{{Election box registered electors|

|reg. electors = 1,021

}}

{{Election box hold with party link|

|winner = Conservative Party (UK)

|swing = +0.5

}}

{{Election box end}}

{{Election box begin | title=General election 1847: Caernarfon}}

{{Election box winning candidate unopposed with party link|

|party = Peelite

|candidate = William Bulkeley Hughes

}}

{{Election box registered electors|

|reg. electors = 888

}}

{{Election box gain with party link no swing|

|winner = Peelite

|loser = Conservative Party (UK)

}}

{{Election box end}}

{{Election box begin | title=General election 1852: Caernarfon}}

{{Election box winning candidate with party link|

|party = Peelite

|candidate = William Bulkeley Hughes

|votes = 369

|percentage = 57.2

|change = N/A

}}

{{Election box candidate with party link|

|party = Radicals (UK)

|candidate = Richard Davies{{cite news |title=The General Elections |url=https://www.britishnewspaperarchive.co.uk/viewer/bl/0001652/18520709/038/0004 |access-date=21 August 2018 |work=Globe |date=9 July 1852 |page=4 |via = British Newspaper Archive|url-access=subscription }}{{cite news |title=The Carnarvon Boroughs Election |url=https://www.britishnewspaperarchive.co.uk/viewer/bl/0000094/18520709/009/0004 |access-date=21 August 2018 |work=North Wales Chronicle |date=9 July 1852 |pages=4–5 |via = British Newspaper Archive|url-access=subscription }}

|votes = 276

|percentage = 42.8

|change = N/A

}}

{{Election box majority|

|votes = 93

|percentage = 14.4

|change = N/A

}}

{{Election box turnout|

|votes = 645

|percentage = 74.9

|change = N/A

}}

{{Election box registered electors|

|reg. electors = 861

}}

{{Election box hold with party link|

|winner = Peelite

|swing = N/A

}}

{{Election box end}}

{{Election box begin | title=General election 1857: Caernarfon}}

{{Election box winning candidate unopposed with party link|

|party = Peelite

|candidate = William Bulkeley Hughes

}}

{{Election box registered electors|

|reg. electors = 919

}}

{{Election box hold with party link no swing|

|winner = Peelite

}}

{{Election box end}}

{{Election box begin | title=General election 1859: Caernarfon}}

{{Election box winning candidate with party link|

|party = Conservative Party (UK)

|candidate = Charles Wynne

|votes = 380

|percentage = 53.7

|change = N/A

}}

{{Election box candidate with party link|

|party = Liberal Party (UK)

|candidate = William Bulkeley Hughes

|votes = 328

|percentage = 46.3

|change = N/A

}}

{{Election box majority|

|votes = 52

|percentage = 7.4

|change = N/A

}}

{{Election box turnout|

|votes = 708

|percentage = 76.2

|change = N/A

}}

{{Election box registered electors|

|reg. electors = 929

}}

{{Election box gain with party link|

|winner = Conservative Party (UK)

|loser = Liberal Party (UK)

|swing = N/A

}}

{{Election box end}}

{{Election box begin | title=General election 1865: Caernarfon}}

{{Election box winning candidate unopposed with party link|

|party = Liberal Party (UK)

|candidate = William Bulkeley Hughes

}}

{{Election box registered electors|

|reg. electors = 1,070

}}

{{Election box gain with party link no swing|

|winner = Liberal Party (UK)

|loser = Conservative Party (UK)

}}

{{Election box end}}

{{Election box begin | title=General election 1868: Caernarfon}}

{{Election box winning candidate with party link|

|party = Liberal Party (UK)

|candidate = William Bulkeley Hughes

|votes = 1,601

|percentage = 60.4

|change = N/A

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = Thomas John Wynn, 5th Baron Newborough|Thomas Wynn

|votes = 1,051

|percentage = 39.6

|change = N/A

}}

{{Election box majority|

|votes = 550

|percentage = 20.8

|change = N/A

}}

{{Election box turnout|

|votes = 2,652

|percentage = 78.6

|change = N/A

}}

{{Election box registered electors|

|reg. electors = 3,376

}}

{{Election box hold with party link no swing|

|winner = Liberal Party (UK)

}}

{{Election box end}}

{{Election box begin | title=General election 1874: Caernarfon}}

{{Election box winning candidate unopposed with party link|

|party = Liberal Party (UK)

|candidate = William Bulkeley Hughes

}}

{{Election box registered electors|

|reg. electors = 3,833

}}

{{Election box hold with party link no swing|

|winner = Liberal Party (UK)

}}

{{Election box end}}

{{Election box begin | title=General election 1880: Caernarfon{{cite book|editor1-last=Craig|editor1-first=F. W. S.|editor-link=F. W. S. Craig|title=British Parliamentary Election Results 1832-1885|date=1977|publisher=Macmillan Press|location=London|isbn=978-1-349-02349-3|edition=1st|type=e-book}}}}

{{Election box winning candidate unopposed with party link|

|party = Liberal Party (UK)

|candidate = William Bulkeley Hughes

}}

{{Election box registered electors|

|reg. electors = 4,157

}}

{{Election box hold with party link no swing|

|winner = Liberal Party (UK)

}}

{{Election box end}}

Hughes' death caused a by-election.

{{Election box begin | title=By-election, 30 Mar 1882: Caernarfon}}

{{Election box winning candidate with party link|

|party = Liberal Party (UK)

|candidate = Love Jones-Parry

|votes = 2,037

|percentage = 77.4

|change = N/A

}}

{{Election box candidate with party link|

|party = Independent Liberal

|candidate = Robert Sorton-Parry{{cite news|title=Tuesday|url=https://www.britishnewspaperarchive.co.uk/viewer/bl/0001502/18820419/056/0003|access-date=24 November 2017|work=Eddowes's Journal, and General Advertiser for Shropshire, and the Principality of Wales|date=19 Apr 1882|page=3}}

|votes = 596

|percentage = 22.6

|change = N/A

}}

{{Election box majority|

|votes = 1,441

|percentage = 54.8

|change = N/A

}}

{{Election box turnout|

|votes = 2,633

|percentage = 62.3

|change = N/A

}}

{{Election box registered electors|

|reg. electors = 4,223

}}

{{Election box hold with party link|

|winner = Liberal Party (UK)

|swing = N/A

}}

{{Election box end}}

{{Election box begin | title=General election 1885: Caernarfon{{cite book|editor1-last=Craig|editor1-first=FWS|title=British Parliamentary Election Results: 1885-1918|date=1974|publisher=Macmillan Press|location=London|isbn=9781349022984}}}}

{{Election box winning candidate with party link|

|party = Liberal Party (UK)

|candidate = Love Jones-Parry

|votes = 1,923

|percentage = 50.9

|change = N/A

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate =Edmund Swetenham

|votes = 1,858

|percentage = 49.1

|change = N/A

}}

{{Election box majority|

|votes = 65

|percentage = 1.8

|change = N/A

}}

{{Election box turnout|

|votes = 3,781

|percentage = 84.5

|change = N/A

}}

{{Election box registered electors|

|reg. electors = 4,476

}}

{{Election box hold with party link|

|winner = Liberal Party (UK)

|swing = N/A

}}

{{Election box end}}

{{Election box begin | title=General election 1886: Caernarfon}}

{{Election box winning candidate with party link|

|party = Conservative Party (UK)

|candidate = Edmund Swetenham

|votes = 1,820

|percentage = 51.9

|change = +2.8

}}

{{Election box candidate with party link|

|party = Liberal Party (UK)

|candidate = Love Jones-Parry

|votes = 1,684

|percentage = 48.1

|change = −2.8

}}

{{Election box majority|

|votes = 136

|percentage = 3.8

|change =

}}

{{Election box turnout|

|votes = 3,504

|percentage = 78.3

|change = −6.2

}}

{{Election box registered electors|

|reg. electors = 4,476

}}

{{Election box gain with party link|

|winner = Conservative Party (UK)

|loser = Liberal Party (UK)

|swing = +2.8

}}

{{Election box end}}

{{Election box begin | title=By-election 1890: Caernarfon}}

{{Election box winning candidate with party link|

|party = Liberal Party (UK)

|candidate = David Lloyd George

|votes = 1,963

|percentage = 50.2

|change = +2.1

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = Hugh Ellis-Nanney

|votes = 1,945

|percentage = 49.8

|change = −2.1

}}

{{Election box majority|

|votes = 18

|percentage = 0.4

|change =

}}

{{Election box turnout|

|votes = 3,908

|percentage = 89.5

|change = +11.2

}}

{{Election box registered electors|

|reg. electors = 4,366

}}

{{Election box gain with party link|

|winner = Liberal Party (UK)

|loser = Conservative Party (UK)

|swing = +2.1

}}

{{Election box end}}

{{Election box begin | title=General election 1892: Caernarfon}}

{{Election box winning candidate with party link|

|party = Liberal Party (UK)

|candidate = David Lloyd George

|votes = 2,154

|percentage = 52.4

|change = +4.3

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = John Henry Puleston

|votes = 1,958

|percentage = 47.6

|change = −4.3

}}

{{Election box majority|

|votes = 196

|percentage = 4.8

|change =

}}

{{Election box turnout|

|votes = 4,112

|percentage = 87.1

|change = +8.8

}}

{{Election box registered electors|

|reg. electors = 4,723

}}

{{Election box gain with party link|

|winner = Liberal Party (UK)

|loser = Conservative Party (UK)

|swing = +4.3

}}

{{Election box end}}

File:1895 David Lloyd George sepia.jpg

{{Election box begin | title=General election 1895: Caernarfon}}

{{Election box winning candidate with party link|

|party = Liberal Party (UK)

|candidate = David Lloyd George

|votes = 2,265

|percentage = 52.2

|change = −0.2

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = Hugh Ellis-Nanney

|votes = 2,071

|percentage = 47.8

|change = +0.2

}}

{{Election box majority|

|votes = 194

|percentage = 4.4

|change = −0.4

}}

{{Election box turnout|

|votes = 4,336

|percentage = 88.8

|change = +1.7

}}

{{Election box registered electors|

|reg. electors = 4,881

}}

{{Election box hold with party link|

|winner = Liberal Party (UK)

|swing = −0.2

}}

{{Election box end}}

{{Election box begin | title=General election 1900: Caernarfon}}

{{Election box winning candidate with party link|

|party = Liberal Party (UK)

|candidate = David Lloyd George

|votes = 2,412

|percentage = 53.3

|change = +1.1

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = Henry Platt (banker)|Henry Platt

|votes = 2,116

|percentage = 46.7

|change = −1.1

}}

{{Election box majority|

|votes = 296

|percentage = 6.6

|change = +2.2

}}

{{Election box turnout|

|votes = 4,528

|percentage = 87.0

|change = −1.8

}}

{{Election box registered electors|

|reg. electors = 5,202

}}

{{Election box hold with party link|

|winner = Liberal Party (UK)

|swing = +1.1

}}

{{Election box end}}

File:David Lloyd George 1902.jpg

{{Election box begin | title=General election 1906: Caernarfon}}

{{Election box winning candidate with party link|

|party = Liberal Party (UK)

|candidate = David Lloyd George

|votes = 3,221

|percentage = 61.7

|change = +8.4

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = R A Naylor

|votes = 1,997

|percentage = 38.3

|change = −8.4

}}

{{Election box majority|

|votes = 1,224

|percentage = 23.4

|change = +16.8

}}

{{Election box turnout|

|votes = 5,218

|percentage = 92.1

|change = +5.1

}}

{{Election box registered electors|

|reg. electors = 5,668

}}

{{Election box hold with party link|

|winner = Liberal Party (UK)

|swing = +8.4

}}

{{Election box end}}

{{Election box begin | title=General election January 1910: Caernarfon}}

{{Election box winning candidate with party link|

|party = Liberal Party (UK)

|candidate = David Lloyd George

|votes = 3,183

|percentage = 60.2

|change = −1.5

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = Hugh Corbet Vincent

|votes = 2,105

|percentage = 39.8

|change = +1.5

}}

{{Election box majority|

|votes = 1,078

|percentage = 20.4

|change = −3.0

}}

{{Election box turnout|

|votes = 5,288

|percentage = 92.5

|change = +0.4

}}

{{Election box hold with party link|

|winner = Liberal Party (UK)

|swing = −1.5

}}

{{Election box end}}

{{Election box begin | title=General election December 1910: Caernarfon}}

{{Election box winning candidate with party link|

|party = Liberal Party (UK)

|candidate = David Lloyd George

|votes = 3,112

|percentage = 62.0

|change = +1.8

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = A L Jones

|votes = 1,904

|percentage = 38.0

|change = −1.8

}}

{{Election box majority|

|votes = 1,208

|percentage = 24.0

|change = +3.6

}}

{{Election box turnout|

|votes = 5,288

|percentage = 87.7

|change = −4.8

}}

{{Election box hold with party link|

|winner = Liberal Party (UK)

|swing = +1.8

}}

{{Election box end}}

File:David Lloyd George.jpg

{{Election box begin | title=General election 1918: Caernarfon

}}

{{Election box winning candidate with party link coalition 1918|

|party = Liberal Party (UK)

|candidate = David Lloyd George

|votes = 13,993

|percentage = 92.7

|change = +30.7

}}

{{Election box candidate with party link|

|party = Independent (politician)

|candidate = Austin Harrison

|votes = 1,095

|percentage = 7.3

|change = New

}}

{{Election box majority|

|votes = 12,898

|percentage = 85.4

|change = +61.4

}}

{{Election box turnout|

|votes = 15,088

|percentage = 63.4

|change = −24.3

}}

{{Election box hold with party link|

|winner = Liberal Party (UK)

|swing = +23.4

}}

{{Election box end 1918}}

File:PMLloydGeorge--nsillustratedwar03londuoft.jpg

{{Election box begin |

|title=General election 1922: Caernarfon}}

{{Election box winning candidate unopposed with party link|

|party = National Liberal Party (UK, 1922)

|candidate = David Lloyd George

}}

{{Election box hold with party link no swing|

|winner = National Liberal Party (UK, 1922)

}}

{{Election box end}}

{{Election box begin | title=General election 1923: Carnarvon Boroughs Etholiadau'r ganrif 1885-1997, Beti Jones}}

{{Election box winning candidate with party link|

|party = Liberal Party (UK)

|candidate = David Lloyd George

|votes = 12,499

|percentage = 63.1

|change = N/A

}}

{{Election box candidate with party link|

|party = Unionist Party (UK)

|candidate = Austin Ellis Lloyd Jones

|votes = 7,323

|percentage = 36.9

|change = N/A

}}

{{Election box majority|

|votes = 5,176

|percentage = 26.2

|change = N/A

}}

{{Election box turnout|

|votes = 19,822

|percentage = 80.9

|change = N/A

}}

{{Election box hold with party link|

|winner = Liberal Party (UK)

|swing = N/A

}}

{{Election box end}}

{{Election box begin | title=General election 1924: Caernarfon}}

{{Election box winning candidate with party link|

|party = Liberal Party (UK)

|candidate = David Lloyd George

|votes = 16,058

|percentage = 82.5

|change = +19.4

}}

{{Election box candidate with party link|

|party = Labour Party (UK)

|candidate = Alfred Zimmern

|votes = 3,401

|percentage = 17.5

|change = New

}}

{{Election box majority|

|votes = 12,657

|percentage = 65.0

|change = +38.8

}}

{{Election box turnout|

|votes = 19,459

|percentage = 77.0

|change = −3.9

}}

{{Election box hold with party link|

|winner = Liberal Party (UK)

|swing = +1.0

}}

{{Election box end}}

{{Election box begin | title=General election 1929: Caernarvon Boroughs}}

{{Election box winning candidate with party link|

|party = Liberal Party (UK)

|candidate = David Lloyd George

|votes = 16,647

|percentage = 58.0

|change = −24.5

}}

{{Election box candidate with party link|

|party = Unionist Party (UK)

|candidate = John Bowen Davies

|votes = 7,514

|percentage = 26.2

|change = New

}}

{{Election box candidate with party link|

|party = Labour Party (UK)

|candidate = Thomas Ap Rhys

|votes = 4,536

|percentage = 15.8

|change = −1.7

}}

{{Election box majority|

|votes = 9,133

|percentage = 31.8

|change = −33.2

}}

{{Election box turnout|

|votes = 28,697

|percentage = 81.8

|change = +4.8

}}

{{Election box hold with party link|

|winner = Liberal Party (UK)

|swing = −25.3

}}

{{Election box end}}

{{Election box begin | title=General election 1931: Caernarfon}}

{{Election box winning candidate with party link|

|party = Liberal Party (UK)

|candidate = David Lloyd George

|votes = 17,101

|percentage = 59.3

|change = +1.3

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = F.P. Gourlay

|votes = 11,714

|percentage = 40.7

|change = +14.5

}}

{{Election box majority|

|votes = 5,387

|percentage = 18.6

|change = −13.2

}}

{{Election box turnout|

|votes = 28,815

|percentage = 80.3

|change = −1.5

}}

{{Election box hold with party link|

|winner = Liberal Party (UK)

|swing = −6.6

}}

{{Election box end}}

{{Election box begin | title=General election 1935: Caernarfon}}

{{Election box winning candidate with party link|

|party = Liberal Party (UK)

|candidate = David Lloyd George

|votes = 19,242

|percentage = 66.6

|change = +7.3

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = A.R.P. Du Cros

|votes = 9,633

|percentage = 33.4

|change = −7.3

}}

{{Election box majority|

|votes = 9,609

|percentage = 33.2

|change = +14.6

}}

{{Election box turnout|

|votes = 28,873

|percentage = 77.4

|change = −2.9

}}

{{Election box hold with party link|

|winner = Liberal Party (UK)

|swing = +7.3

}}

{{Election box end}}

{{Election box begin | title=By-election 1945: Caernarfon}}

{{Election box winning candidate with party link|

|party = Liberal Party (UK)

|candidate = Seaborne Davies

|votes = 20,754

|percentage = 75.2

|change = +8.6

}}

{{Election box candidate with party link|

|party = Plaid Cymru

|candidate = John Edward Daniel

|votes = 6,844

|percentage = 24.8

|change = New

}}

{{Election box majority|

|votes = 13,910

|percentage = 50.4

|change = +17.2

}}

{{Election box turnout|

|votes = 27,598

|percentage = 58.8

|change = −18.6

}}

{{Election box hold with party link|

|winner = Liberal Party (UK)

|swing = −8.1

}}

{{Election box end}}

{{Election box begin | title=General election 1945: Caernarfon}}

{{Election box winning candidate with party link|

|party = Conservative Party (UK)

|candidate = David Price-White

|votes = 11,432

|percentage = 32.9

|change = −0.5

}}

{{Election box candidate with party link|

|party = Liberal Party (UK)

|candidate = Seaborne Davies

|votes = 11,096

|percentage = 32.0

|change = −34.6

}}

{{Election box candidate with party link|

|party = Labour Party (UK)

|candidate = Elwyn Jones

|votes = 10,625

|percentage = 30.6

|change = New

}}

{{Election box candidate with party link|

|party = Plaid Cymru

|candidate = John Edward Daniel

|votes = 1,560

|percentage = 4.5

|change = New

}}

{{Election box majority|

|votes = 336

|percentage = 0.9

|change =

}}

{{Election box turnout|

|votes = 34,713

|percentage = 73.8

|change = −3.6

}}

{{Election box gain with party link|

|winner = Conservative Party (UK)

|loser = Liberal Party (UK)

|swing = +17.1

}}

{{Election box end}}

{{Election box begin |

|title=General election 1950: Caernarfon}}

{{Election box winning candidate with party link|

|party = Labour Party (UK)

|candidate = Goronwy Roberts

|votes = 18,369

|percentage = 49.1

|change = +18.5

}}

{{Election box candidate with party link|

|party = Liberal Party (UK)

|candidate = Elwyn Rhys Thomas

|votes = 7,791

|percentage = 20.9

|change = −11.1

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = G. W. Williams

|votes = 6,315

|percentage = 16.9

|change = −16.0

}}

{{Election box candidate with party link|

|party = Plaid Cymru

|candidate = John Jones

|votes = 4,882

|percentage = 13.1

|change = +8.6

}}

{{Election box majority|

|votes = 10,578

|percentage = 28.2

|change =

}}

{{Election box turnout|

|votes = 37,357

|percentage = 85.9

|change = +12.1

}}

{{Election box gain with party link|

|winner = Labour Party (UK)

|loser = Conservative Party (UK)

|swing = +17.3

}}

{{Election box end}}

{{Election box begin |

|title=General election 1951: Caernarfon}}

{{Election box winning candidate with party link|

|party = Labour Party (UK)

|candidate = Goronwy Roberts

|votes = 22,375

|percentage = 62.4

|change = +13.3

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = John E B Davies

|votes = 13,479

|percentage = 37.6

|change = +20.7

}}

{{Election box majority|

|votes = 8,896

|percentage = 24.8

|change = −3.4

}}

{{Election box turnout|

|votes = 35,854

|percentage = 82.5

|change = −3.4

}}

{{Election box hold with party link|

|winner = Labour Party (UK)

|swing = −3.7

}}

{{Election box end}}

{{Election box begin |

|title=General election 1955: Caernarfon}}

{{Election box winning candidate with party link|

|party = Labour Party (UK)

|candidate = Goronwy Roberts

|votes = 17,682

|percentage = 50.2

|change = −12.2

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = O Meurig Roberts

|votes = 8,461

|percentage = 24.0

|change = −13.6

}}

{{Election box candidate with party link|

|party = Plaid Cymru

|candidate = Robert Jones

|votes = 5,815

|percentage = 16.5

|change = New

}}

{{Election box candidate with party link|

|party = Liberal Party (UK)

|candidate = D. Geraint Williams

|votes = 3,277

|percentage = 9.3

|change = New

}}

{{Election box majority|

|votes = 9,221

|percentage = 26.2

|change = +1.4

}}

{{Election box turnout|

|votes = 35,235

|percentage = 82.4

|change = −0.1

}}

{{Election box hold with party link|

|winner = Labour Party (UK)

|swing = +0.7

}}

{{Election box end}}

{{Election box begin |

|title=General election 1959: Caernarfon}}

{{Election box winning candidate with party link|

|party = Labour Party (UK)

|candidate = Goronwy Roberts

|votes = 17,506

|percentage = 51.0

|change = +0.8

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = Tom Hooson

|votes = 9,564

|percentage = 27.8

|change = +3.8

}}

{{Election box candidate with party link|

|party = Plaid Cymru

|candidate = Dafydd Orwig Jones

|votes = 7,293

|percentage = 21.2

|change = +4.7

}}

{{Election box majority|

|votes = 7,942

|percentage = 23.2

|change = −3.0

}}

{{Election box turnout|

|votes = 34,363

|percentage = 83.4

|change = +1.0

}}

{{Election box hold with party link|

|winner = Labour Party (UK)

|swing = −1.5

}}

{{Election box end}}

{{Election box begin |

|title=General election 1964: Caernarvon{{cite web|last1=Kimber|first1=Richard|title=UK General Election results 1964|url=http://politicsresources.net/area/uk/ge64/i04.htm|website=Political Science Resources|access-date=14 April 2016|archive-url=https://web.archive.org/web/20170629215738/http://www.politicsresources.net/area/uk/ge64/i04.htm|archive-date=29 June 2017|url-status=dead}}}}

{{Election box winning candidate with party link|

|party = Labour Party (UK)

|candidate = Goronwy Roberts

|votes = 17,777

|percentage = 54.4

|change = +3.4

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = Shelagh Roberts

|votes = 7,915

|percentage = 24.2

|change = −3.6

}}

{{Election box candidate with party link|

|party = Plaid Cymru

|candidate = Robert E Jones

|votes = 6,998

|percentage = 21.4

|change = +0.2

}}

{{Election box majority|

|votes = 9,862

|percentage = 30.2

|change = +7.0

}}

{{Election box turnout|

|votes = 32,690

|percentage = 80.38

|change = −3.0

}}

{{Election box registered electors

|reg. electors = 40,671

}}

{{Election box hold with party link|

|winner = Labour Party (UK)

|swing = +3.5

}}

{{Election box end}}

{{Election box begin |

|title=General election 1966: Caernarvon{{cite web|last1=Kimber|first1=Richard|title=UK General Election results 1966|url=http://politicsresources.net/area/uk/ge66/i04.htm|website=Political Science Resources|access-date=14 April 2016|archive-url=https://web.archive.org/web/20150924114943/http://www.politicsresources.net/area/uk/ge66/i04.htm|archive-date=24 September 2015|url-status=dead}}}}

{{Election box winning candidate with party link|

|party = Labour Party (UK)

|candidate = Goronwy Roberts

|votes = 17,650

|percentage = 56.11

|change = +1.7

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = Roger Prys

|votes = 6,972

|percentage = 22.16

|change = −2.0

}}

{{Election box candidate with party link|

|party = Plaid Cymru

|candidate = Humphrey Roberts

|votes = 6,834

|percentage = 21.7

|change = +0.3

}}

{{Election box majority|

|votes = 10,678

|percentage = 33.9

|change = +3.7

}}

{{Election box turnout|

|votes = 31,456

|percentage = 78.40

|change = −2.0

}}

{{Election box registered electors

|reg. electors = 40,121

}}

{{Election box hold with party link|

|winner = Labour Party (UK)

|swing = +1.9

}}

{{Election box end}}

{{Election box begin |

|title=General election 1970: Caernarvon{{cite web|title=UK General Election results 1970|url=http://www.politicsresources.net/area/uk/ge70/i04.htm|website=Politics Resources|access-date=20 March 2016|archive-url=https://web.archive.org/web/20110811174800/http://www.politicsresources.net/area/uk/ge70/i04.htm|archive-date=11 August 2011|url-status=dead}}}}

{{Election box winning candidate with party link|

|party = Labour Party (UK)

|candidate = Goronwy Roberts

|votes = 13,627

|percentage = 40.1

|change = −16.0

}}

{{Election box candidate with party link|

|party = Plaid Cymru

|candidate = Robyn Léwis

|votes = 11,331

|percentage = 33.4

|change = +11.7

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = Kathleen J. Smith

|votes = 6,812

|percentage = 20.1

|change = −2.1

}}

{{Election box candidate with party link|

|party = Liberal Party (UK)

|candidate = John A. Williams

|votes = 2,195

|percentage = 6.5

|change = New

}}

{{Election box majority|

|votes = 2,296

|percentage = 6.8

|change = −27.1

}}

{{Election box turnout|

|votes = 33,965

|percentage = 81.7

|change = +3.3

}}

{{Election box hold with party link|

|winner = Labour Party (UK)

|swing =

}}

{{Election box end}}

{{Election box begin |

|title=General election February 1974: Caernarvon{{cite web|title=UK General Election results February 1974|url=http://www.politicsresources.net/area/uk/ge74a/i04.htm|website=Politics Resources|access-date=20 March 2016|archive-url=https://web.archive.org/web/20091205040037/http://www.politicsresources.net/area/uk/ge74a/i04.htm|archive-date=5 December 2009|url-status=dead}}}}

{{Election box winning candidate with party link|

|party = Plaid Cymru

|candidate = Dafydd Wigley

|votes = 14,103

|percentage = 40.5

|change = +7.1

}}

{{Election box candidate with party link|

|party = Labour Party (UK)

|candidate = Goronwy Roberts

|votes = 12,375

|percentage = 35.6

|change = −4.5

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = Tristan Garel-Jones

|votes = 5,803

|percentage = 16.7

|change = −3.4

}}

{{Election box candidate with party link|

|party = Liberal Party (UK)

|candidate = Gerald Hill David

|votes = 2,506

|percentage = 7.2

|change = +0.7

}}

{{Election box majority|

|votes = 1,728

|percentage = 4.9

|change =

}}

{{Election box turnout|

|votes = 34,787

|percentage = 82.4

|change = +0.7

}}

{{Election box gain with party link|

|winner = Plaid Cymru

|loser = Labour Party (UK)

|swing =

}}

{{Election box end}}

{{Election box begin |

|title=General election October 1974: Caernarvon{{cite web|title=UK General Election results October 1974|url=http://www.politicsresources.net/area/uk/ge74b/i04.htm|website=Politics Resources|access-date=20 March 2016|archive-url=https://web.archive.org/web/20150508153624/http://www.politicsresources.net/area/uk/ge74b/i04.htm|archive-date=8 May 2015|url-status=dead}}}}

{{Election box winning candidate with party link|

|party = Plaid Cymru

|candidate = Dafydd Wigley

|votes = 14,624

|percentage = 42.6

|change = +2.1

}}

{{Election box candidate with party link|

|party = Labour Party (UK)

|candidate = Emlyn Jones Sherrington

|votes = 11,730

|percentage = 34.1

|change = −1.5

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = Robert Lambart Harvey

|votes = 4,325

|percentage = 12.6

|change = −4.1

}}

{{Election box candidate with party link|

|party = Liberal Party (UK)

|candidate = Dewi Williams

|votes = 3,690

|percentage = 10.7

|change = +3.5

}}

{{Election box majority|

|votes = 2,894

|percentage = 8.5

|change = +3.6

}}

{{Election box turnout|

|votes = 34,369

|percentage = 80.9

|change = −1.5

}}

{{Election box hold with party link|

|winner = Plaid Cymru

|swing = +1.7

}}

{{Election box end}}

{{Election box begin |

|title=General election 1979: Caernarvon{{cite web|title='Caernarvon', Feb 1974 - May 1983|url=http://electionweb.co.uk/Bp/P74118.htm|website=ElectionWeb Project|publisher=Cognitive Computing Limited|access-date=4 March 2016}}{{cite web|title=UK General Election results May 1979|url=http://www.politicsresources.net/area/uk/ge79/i04.htm|website=Politics Resources|access-date=20 March 2016|archive-url=https://web.archive.org/web/20110811162703/http://www.politicsresources.net/area/uk/ge79/i04.htm|archive-date=11 August 2011|url-status=dead}}}}

{{Election box winning candidate with party link|

|party = Plaid Cymru

|candidate = Dafydd Wigley

|votes = 17,420

|percentage = 49.7

|change = +7.1

}}

{{Election box candidate with party link|

|party = Labour Party (UK)

|candidate = Thomas Merfyn Hughes

|votes = 8,696

|percentage = 24.8

|change = −9.3

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = James Edward Thornton Paice

|votes = 6,968

|percentage = 19.9

|change = +7.3

}}

{{Election box candidate with party link|

|party = Liberal Party (UK)

|candidate = John Trevor Edwards

|votes = 1,999

|percentage = 5.7

|change = −5.0

}}

{{Election box majority|

|votes = 8,724

|percentage = 24.9

|change = +16.4

}}

{{Election box turnout|

|votes = 35,083

|percentage = 81.5

|change = +0.6

}}

{{Election box hold with party link|

|winner = Plaid Cymru

|swing = +8.2

}}

{{Election box end}}

{{Election box begin |

|title=General election 1983: Caernarfon{{cite web|title=Election Data 1983|url=http://www.electoralcalculus.co.uk/electdata_1983.txt|publisher=Electoral Calculus|access-date=18 October 2015|archive-url=https://web.archive.org/web/20111015054231/http://www.electoralcalculus.co.uk/electdata_1983.txt|archive-date=15 October 2011|url-status=dead}}

}}

{{Election box winning candidate with party link|

|party = Plaid Cymru

|candidate = Dafydd Wigley

|votes = 18,308

|percentage = 52.7

|change = +3.0

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = Dennis Jones

|votes = 7,319

|percentage = 21.1

|change = +1.2

}}

{{Election box candidate with party link|

|party = Labour Party (UK)

|candidate = Betty Williams

|votes = 6,736

|percentage = 19.4

|change = −5.4

}}

{{Election box candidate with party link|

|party = Liberal Party (UK)

|candidate = Owain Griffiths

|votes = 2,356

|percentage = 6.8

|change = +1.1

}}

{{Election box majority|

|votes = 10,989

|percentage = 31.6

|change = +6.7

}}

{{Election box turnout|

|votes = 34,719

|percentage = 78.6

|change = −2.9

}}

{{Election box hold with party link|

|winner = Plaid Cymru

|swing =

}}

{{Election box end}}

{{Election box begin |

|title=General election 1987: Caernarfon{{cite web|title=Election Data 1987|url=http://www.electoralcalculus.co.uk/electdata_1987.txt|publisher=Electoral Calculus|access-date=18 October 2015|archive-url=https://web.archive.org/web/20111015054243/http://www.electoralcalculus.co.uk/electdata_1987.txt|archive-date=15 October 2011|url-status=dead}}{{cite web|title='Caernarfon', June 1983 up to May 1997|url=http://electionweb.co.uk/Bp/P83108.htm#83001|website=ElectionWeb Project|publisher=Cognitive Computing Limited|access-date=4 March 2016}}

}}

{{Election box winning candidate with party link|

|party = Plaid Cymru

|candidate = Dafydd Wigley

|votes = 20,338

|percentage = 57.1

|change = +4.4

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = Felix Aubel

|votes = 7,526

|percentage = 21.1

|change = 0.0

}}

{{Election box candidate with party link|

|party = Labour Party (UK)

|candidate = David Williams

|votes = 5,652

|percentage = 15.9

|change = −3.5

}}

{{Election box candidate with party link|

|party = Liberal Party (UK)

|candidate = John Parsons

|votes = 2,103

|percentage = 5.9

|change = −0.9

}}

{{Election box majority|

|votes = 12,812

|percentage = 36.0

|change = +4.4

}}

{{Election box turnout|

|votes = 35,619

|percentage = 78.0

|change = −0.6

}}

{{Election box hold with party link|

|winner = Plaid Cymru

|swing =

}}

{{Election box end}}

{{Election box begin |

|title=General election 1992: Caernarfon{{cite web|title=Election Data 1992|url=http://www.electoralcalculus.co.uk/electdata_1992ob.txt|publisher=Electoral Calculus|access-date=18 October 2015|archive-url=https://web.archive.org/web/20111015054418/http://www.electoralcalculus.co.uk/electdata_1992ob.txt|archive-date=15 October 2011|url-status=dead}}{{cite web|url=http://www.politicsresources.net/area/uk/ge92/ge92index.htm|title=Politics Resources|date=9 April 1992|work=Election 1992|publisher=Politics Resources|access-date=6 Dec 2010|archive-url=https://web.archive.org/web/20110724020412/http://www.politicsresources.net/area/uk/ge92/ge92index.htm|archive-date=24 July 2011|url-status=dead}}

}}

{{Election box winning candidate with party link|

|party = Plaid Cymru

|candidate = Dafydd Wigley

|votes = 21,439

|percentage = 59.0

|change = +1.9

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = Peter E.H. Fowler

|votes = 6,963

|percentage = 19.2

|change = −1.9

}}

{{Election box candidate with party link|

|party = Labour Party (UK)

|candidate = Sharon Mainwaring

|votes = 5,641

|percentage = 15.5

|change = −0.4

}}

{{Election box candidate with party link|

|party = Liberal Democrats (UK)

|candidate = Robert W. Williams

|votes = 2,101

|percentage = 5.8

|change = −0.1

}}

{{Election box candidate with party link|

|party = Natural Law Party

|candidate = Gwyndaf Evans

|votes = 173

|percentage = 0.5

|change = New

}}

{{Election box majority|

|votes = 14,476

|percentage = 39.8

|change = +3.8

}}

{{Election box turnout|

|votes = 36,317

|percentage = 80.1

|change = +2.1

}}

{{Election box hold with party link|

|winner = Plaid Cymru

|swing = +1.9

}}

{{Election box end}}

{{Election box begin |

|title=General election 1997: Caernarfon{{cite web|title=Election Data 1997|url=http://www.electoralcalculus.co.uk/electdata_1997.txt|publisher=Electoral Calculus|access-date=18 October 2015|archive-url=https://web.archive.org/web/20111015054424/http://www.electoralcalculus.co.uk/electdata_1997.txt|archive-date=15 October 2011|url-status=dead}}}}

{{Election box winning candidate with party link|

|party = Plaid Cymru

|candidate = Dafydd Wigley

|votes = 17,616

|percentage = 51.0

|change = −8.0

}}

{{Election box candidate with party link|

|party = Labour Party (UK)

|candidate = Eifion Wyn Williams

|votes = 10,167

|percentage = 29.5

|change = +14.0

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = Elwyn Williams

|votes = 4,230

|percentage = 12.3

|change = −6.9

}}

{{Election box candidate with party link|

|party = Liberal Democrats (UK)

|candidate = Mary Macqueen

|votes = 1,686

|percentage = 4.9

|change = −0.9

}}

{{Election box candidate with party link|

|party = Referendum Party

|candidate = Clive Collins

|votes = 811

|percentage = 2.4

|change = New

}}

{{Election box majority|

|votes = 7,449

|percentage = 21.5

|change = −18.3

}}

{{Election box turnout|

|votes = 34,510

|percentage = 73.7

|change = −6.4

}}

{{Election box hold with party link|

|winner = Plaid Cymru

|swing = −11.2

}}

{{Election box end}}

{{Election box begin |

|title=General election 2001: Caernarfon{{cite web|title=Election Data 2001|url=http://www.electoralcalculus.co.uk/electdata_2001ob.txt|publisher=Electoral Calculus|access-date=18 October 2015|archive-url=https://web.archive.org/web/20111015054450/http://www.electoralcalculus.co.uk/electdata_2001ob.txt|archive-date=15 October 2011|url-status=dead}}}}

{{Election box winning candidate with party link|

|party = Plaid Cymru

|candidate = Hywel Williams

|votes = 12,894

|percentage = 44.4

|change = −6.6

}}

{{Election box candidate with party link|

|party = Labour Party (UK)

|candidate = Martin Eaglestone

|votes = 9,383

|percentage = 32.3

|change = +2.8

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = Bronwen Naish

|votes = 4,403

|percentage = 15.2

|change = +2.9

}}

{{Election box candidate with party link|

|party = Liberal Democrats (UK)

|candidate = Evan Ab-Owain

|votes = 1,823

|percentage = 6.3

|change = +1.4

}}

{{Election box candidate with party link|

|party = UK Independence Party

|candidate = Ifor Lloyd

|votes = 550

|percentage = 1.9

|change = New

}}

{{Election box majority|

|votes = 3,511

|percentage = 12.1

|change = −9.6

}}

{{Election box turnout|

|votes = 29,053

|percentage = 62.0

|change = −11.7

}}

{{Election box hold with party link|

|winner = Plaid Cymru

|swing = −4.7

}}

{{Election box end}}

{{Election box begin |

|title=General election 2005: Caernarfon{{cite web|title=Election Data 2005|url=http://www.electoralcalculus.co.uk/electdata_2005ob.txt|publisher=Electoral Calculus|access-date=18 October 2015|archive-url=https://web.archive.org/web/20111015054249/http://www.electoralcalculus.co.uk/electdata_2005ob.txt|archive-date=15 October 2011|url-status=dead}}

}}

{{Election box winning candidate with party link|

|party = Plaid Cymru

|candidate = Hywel Williams

|votes = 12,747

|percentage = 45.5

|change = +1.1

}}

{{Election box candidate with party link|

|party = Labour Party (UK)

|candidate = Martin Eaglestone

|votes = 7,538

|percentage = 26.9

|change = −5.4

}}

{{Election box candidate with party link|

|party = Liberal Democrats (UK)

|candidate = Evan Ab-Owain

|votes = 3,508

|percentage = 12.5

|change = +6.2

}}

{{Election box candidate with party link|

|party = Conservative Party (UK)

|candidate = Guy Opperman

|votes = 3,483

|percentage = 12.4

|change = −2.8

}}

{{Election box candidate with party link|

|party = UK Independence Party

|candidate = Elwyn Williams

|votes = 723

|percentage = 2.6

|change = +0.7

}}

{{Election box majority|

|votes = 5,209

|percentage = 18.6

|change = +6.5

}}

{{Election box turnout|

|votes = 27,999

|percentage = 60.4

|change = −1.6

}}

{{Election box hold with party link|

|winner = Plaid Cymru

|swing = +3.3

}}

{{Election box end}}

• 1890 Caernarvon Boroughs by-election
• 1945 Caernarvon Boroughs by-election
• List of parliamentary constituencies in Gwynedd

{{Reflist}}

• Boundaries of Parliamentary Constituencies 1885–1972, compiled and edited by F. W. S. Craig (Parliamentary Reference Publications 1972)
• British Parliamentary Constituencies: A Statistical Compendium, by Ivor Crewe and Anthony Fox (Faber and Faber 1984)
• British Parliamentary Election Results 1832–1885, compiled and edited by F.W.S. Craig (The Macmillan Press 1977)
• F. W. S. Craig, British Parliamentary Election Results 1885 – 1918
• F. W. S. Craig, British Parliamentary Election Results 1918 – 1949
• British Parliamentary Election Results 1950–1973, compiled and edited by F.W.S. Craig (Parliamentary Research Services 1983)
• The House of Commons 1509–1558, by S.T. Bindoff (Secker & Warburg 1982)
• The House of Commons 1558–1603, by P.W. Hasler (HMSO 1981)
• The House of Commons 1715–1754, by Romney Sedgwick (HMSO 1970)
• The House of Commons 1754–1790, by Sir Lewis Namier and John Brooke (HMSO 1964)
• The Parliaments of England by Henry Stooks Smith (1st edition published in three volumes 1844–50), second edition edited (in one volume) by F.W.S. Craig (Political Reference Publications 1973)

• [https://mapit.mysociety.org/area/13489.html Caernarfon UK Parliament constituency] (boundaries April 1997 – April 2010) at MapIt UK

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{{s-par|uk}}

{{s-bef|before=Fife East}}

{{s-ttl|title=Constituency represented by the chancellor of the Exchequer|years=1908–1915}}

{{s-aft|after=Monmouthshire North}}

{{s-bef|before=Fife East}}

{{s-ttl|title=Constituency represented by the prime minister|years=1916–1922}}

{{s-aft|after=Glasgow Central}}

{{s-bef|before=Liverpool Scotland}}

{{s-ttl|title=Constituency represented by the father of the House|years=1929–1945}}

{{s-aft|after=Horsham}}

{{s-end}}

{{Constituencies in Wales}}

{{Historic constituencies in Wales}}

{{coord|52.976|-4.308|display=title|region:GB_scale:500000}}

Category:Historic parliamentary constituencies in North Wales

Category:History of Gwynedd

Category:Politics of Caernarfonshire

Category:Constituencies of the Parliament of the United Kingdom established in 1536

Category:Constituencies of the Parliament of the United Kingdom disestablished in 2010

Category:David Lloyd George