Detailed results of the 2007 Ontario electoral reform referendum
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{{Unreferenced|date=June 2019|bot=noref (GreenC bot)}}
The following tables are the detailed results of the Ontario electoral reform referendum that was held on October 10, 2007, in an attempt to establish a mixed-member proportional representation (MMP) system for elections to the Legislative Assembly of Ontario. However, the vote went heavily in favor of the existing plurality voting or "first-past-the-post" (FPTP) system.
Results for Ontario regions excluding Toronto
| class="wikitable"
! Riding ! Region ! First-past-the-post ! Mixed-member proportional |
| Ajax-Pickering
|Southern Durham and York |25,023 (63.0%) |14,685 (37.0%) |
| Algoma-Manitoulin
|Northern Ontario |18,099 (69.9%) |7,806 (30.1%) |
| Ancaster-Dundas-Flamborough-Westdale
|Hamilton, Burlington and Niagara |30,756 (63.0%) |18,047 (37.0%) |
| Barrie
|Central Ontario |27,951 (61.8%) |17,310 (38.2%) |
| Bramalea-Gore-Malton
|Brampton, Mississauga and Oakville |23,241 (59.5%) |15,793 (40.5%) |
| Brampton-Springdale
|Brampton, Mississauga and Oakville |20,528 (60.8%) |13,210 (39.2%) |
| Brampton West
|Brampton, Mississauga and Oakville |26,221 (60.7%) |16,962 (39.3%) |
| Brant
|Midwestern Ontario |30,256 (65.1%) |16,200 (34.9%) |
| Bruce-Grey-Owen Sound
|Central Ontario |27,637 (62.9%) |16,279 (37.1%) |
| Burlington
|Hamilton, Burlington and Niagara |33,788 (65.8%) |17,524 (34.2%) |
| Cambridge
|Midwestern Ontario |25,805 (61.5%) |16,187 (38.5%) |
| Carleton-Mississippi Mills
|Ottawa |36,458 (70.2%) |15,454 (29.8%) |
| Chatham-Kent-Essex
|Southwestern Ontario |24,219 (69.2%) |10,802 (30.8%) |
| Dufferin-Caledon
|Central Ontario |24,847 (64.1%) |13,910 (35.9%) |
| Durham
|Central Ontario |30,292 (67.3%) |14,751 (32.7%) |
| Elgin-Middlesex-London
|Southwestern Ontario |27,035 (67.9%) |12,771 (32.1%) |
| Essex
|Southwestern Ontario |27,228 (66.9%) |13,452 (33.1%) |
| Glengarry-Prescott-Russell
|Eastern Ontario |28,263 (73.6%) |10,121 (26.4%) |
| Guelph
|Midwestern Ontario |27,081 (55.7%) |21,503 (44.3%) |
| Haldimand-Norfolk
|Midwestern Ontario |28,684 (68.8%) |13,034 (31.2%) |
| Haliburton-Kawartha Lakes-Brock
|Central Ontario |33,292 (70.1%) |14,234 (29.9%) |
| Halton
|Hamilton, Burlington and Niagara |33,833 (63.3%) |19,601 (36.7%) |
| Hamilton Centre
|Hamilton, Burlington and Niagara |20,942 (56.5%) |16,108 (43.5%) |
| Hamilton East—Stoney Creek
|Hamilton, Burlington and Niagara |26,386 (63.8%) |14,998 (36.2%) |
| Hamilton Mountain
|Hamilton, Burlington and Niagara |29,375 (65.0%) |15,818 (35.0%) |
| Huron—Bruce
|Midwestern Ontario |30,795 (71.4%) |12,342 (28.6%) |
| Kenora-Rainy River
|Northern Ontario |15,669 (69.9%) |6,734 (30.1%) |
| Kingston and the Islands
|Eastern Ontario |26,427 (54.7%) |21,922 (45.3%) |
| Kitchener Centre
|Midwestern Ontario |22,269 (59.9%) |14,908 (40.1%) |
| Kitchener—Conestoga
|Midwestern Ontario |24,264 (63.6%) |13,859 (36.4%) |
| Kitchener—Waterloo
|Midwestern Ontario |28,580 (57.0%) |21,543 (43.0%) |
| Lambton-Kent-Middlesex
|Southwestern Ontario |28,085 (68.8%) |12,739 (31.2%) |
| Lanark—Frontenac—Lennox and Addington
|Eastern Ontario |29,366 (66.7%) |14,657 (33.3%) |
| Leeds—Grenville
|Eastern Ontario |28,156 (71.2%) |11,392 (28.8%) |
| London—Fanshawe
|Southwestern Ontario |21,709 (63.3%) |12,563 (36.7%) |
| London North Centre
|Southwestern Ontario |26,619 (59.5%) |18,103 (40.5%) |
| London West
|Southwestern Ontario |30,789 (64.0%) |17,338 (36.0%) |
| Markham—Unionville
|Southern Durham and York |20,146 (58.8%) |14,143 (41.2%) |
| Mississauga—Brampton South
|Brampton, Mississauga and Oakville |21,219 (60.0%) |14,124 (40.0%) |
| Mississauga East—Cooksville
|Brampton, Mississauga and Oakville |22,180 (61.6%) |13,822 (38.4%) |
| Mississauga—Erindale
|Brampton, Mississauga and Oakville |27,165 (62.3%) |16,473 (37.7%) |
| Mississauga South
|Brampton, Mississauga and Oakville |26,127 (65.1%) |14,036 (34.9%) |
| Mississauga—Streetsville
|Brampton, Mississauga and Oakville |23,183 (61.7%) |14,417 (38.3%) |
| Nepean-Carleton
|Ottawa |36,775 (69.2%) |16,393 (30.8%) |
| Newmarket—Aurora
|Central Ontario |29,517 (66.0%) |15,232 (34.0%) |
| Niagara Falls
|Hamilton, Burlington and Niagara |29,240 (64.7%) |15,966 (35.3%) |
| [[Niagara West—Glanbrook (provincial electoral district)|Niagara West-Glanbrook
|Hamilton, Burlington and Niagara]] |30,670 (65.7%) |16,012 (34.3%) |
| Nickel Belt
|Northern Ontario |21,731 (69.0%) |9,771 (31.0%) |
| Nipissing
|Northern Ontario |23,116 (73.4%) |8,383 (26.6%) |
| Northumberland—Quinte West
|Central Ontario |32,332 (67.2%) |15,770 (32.8%) |
| Oak Ridges—Markham
|Southern Durham and York |35,866 (62.0%) |22,006 (38.0%) |
| Oakville
|Brampton, Mississauga and Oakville |31,282 (67.0%) |15,410 (33.0%) |
| Oshawa
|Southern Durham and York |25,656 (64.2%) |14,306 (35.8%) |
| Ottawa Centre
|Ottawa |26,603 (51.9%) |24,642 (48.1%) |
| Ottawa-Orleans
|Ottawa |33,537 (70.1%) |14,296 (29.9%) |
| Ottawa South
|Ottawa |30,718 (65.8%) |15,941 (34.2%) |
| Ottawa-Vanier
|Ottawa |24,545 (61.3%) |15,501 (38.7%) |
| Ottawa-West Nepean
|Ottawa |30,459 (66.6%) |15,244 (33.4%) |
| Oxford
|Midwestern Ontario |25,093 (66.0%) |12,909 (34.0%) |
| Parry Sound-Muskoka
|Northern Ontario |24,421 (67.9%) |11,527 (32.1%) |
| Perth Wellington
|Midwestern Ontario |25,479 (67.6%) |12,237 (32.4%) |
| Peterborough
|Central Ontario |32,364 (64.4%) |17,863 (35.6%) |
| Pickering—Scarborough East
|Southern Durham and York |25,361 (63.7%) |14,469 (36.3%) |
| Prince Edward—Hastings
|Eastern Ontario |29,067 (66.1%) |14,885 (33.9%) |
| Renfrew—Nipissing—Pembroke
|Eastern Ontario |28,748 (74.3%) |9,926 (25.7%) |
| Richmond Hill
|Southern Durham and York |23,240 (58.9%) |16,240 (41.1%) |
| St. Catharines
|Hamilton, Burlington and Niagara |26,611 (61.7%) |16,516 (38.3%) |
| Sarnia-Lambton (270/272)
|Southwestern Ontario |27,498 (66.6%) |13,786 (33.4%) |
| Sault Ste. Marie
|Northern Ontario |22,830 (73.8%) |8,110 (26.2%) |
| Simcoe—Grey
|Central Ontario |31,413 (66.8%) |15,580 (33.2%) |
| Simcoe North
|Central Ontario |28,222 (62.7%) |16,791 (37.3%) |
| Stormont-Dundas-South Glengarry
|Eastern Ontario |27,203 (73.5%) |9,786 (26.5%) |
| Sudbury
|Northern Ontario |21,613 (68.1%) |10,127 (31.9%) |
| Thornhill
|Southern Durham and York |29,021 (62.1%) |17,683 (37.9%) |
| Thunder Bay-Atikokan
|Northern Ontario |19,211 (68.4%) |8,864 (31.6%) |
| Thunder Bay-Superior North
|Northern Ontario |18,640 (67.7%) |8,897 (32.3%) |
| Timiskaming-Cochrane
|Northern Ontario |19,759 (76.4%) |6,102 (23.6%) |
| Timmins-James Bay
|Northern Ontario |18,784 (77.5%) |5,439 (22.5%) |
| Vaughan
|Southern Durham and York |27,336 (61.7%) |16,979 (38.3%) |
| Welland
|Hamilton, Burlington and Niagara |26,893 (60.1%) |17,830 (39.9%) |
| Wellington-Halton Hills
|Midwestern Ontario |28,472 (66.2%) |14,543 (33.8%) |
| Whitby—Oshawa
|Southern Durham and York |33,509 (66.2%) |17,121 (33.8%) |
| Willowdale
|Toronto North Region |25,555 (59.6%) |17,304 (40.4%) |
| Windsor—Tecumseh
|Southwestern Ontario |22,786 (64.4%) |12,586 (35.6%) |
| Windsor West
|Southwestern Ontario |20,433 (63.1%) |11,963 (36.9%) |
| York—Simcoe
|Central Ontario |26,223 (64.6%) |14,374 (35.4%) |
| Totals
| |2,297,820 (64.8%) |1,246,985 (35.2%) |
Results for Toronto regions
| class="wikitable"
! Riding ! Region ! First-past-the-post ! Mixed-member proportional |
| Beaches-East York
|Toronto South Region |19,212 (50.0%) |19,242 (50.0%) |
| Davenport
|Toronto South Region |12,241 (43.5%) |15,923 (56.5%) |
| Don Valley East
|Toronto North Region |20,758 (61.0%) |13,265 (39.0%) |
| Don Valley West
|Toronto North Region |28,084 (63.0%) |16,484 (37.0%) |
| Eglinton-Lawrence
|Toronto North Region |23,475 (61.0%) |14,996 (39.0%) |
| Etobicoke Centre
|Toronto West Region |28,866 (65.3%) |15,331 (34.7%) |
| Etobicoke-Lakeshore
|Toronto West Region |26,115 (61.2%) |16,576 (38.8%) |
| Etobicoke North
|Toronto West Region |15,176 (57.7%) |11,131 (42.3%) |
| Parkdale—High Park
|Toronto West Region |18,067 (45.7%) |21,444 (54.3%) |
| Scarborough—Agincourt
|Toronto East Region |19,258 (60.1%) |12,808 (39.9%) |
| Scarborough Centre
|Toronto East Region |19,284 (60.8%) |12,457 (39.2%) |
| Scarborough-Guildwood
|Toronto East Region |19,544 (60.0%) |13,050 (40.0%) |
| Scarborough—Rouge River
|Toronto East Region |18,230 (55.0%) |14,892 (45.0%) |
| Scarborough Southwest
|Toronto East Region |18,699 (59.2%) |12,894 (40.8%) |
| St. Paul's
|Toronto South Region |24,120 (55.2%) |19,595 (44.8%) |
| Toronto Centre
|Toronto South Region |22,039 (50.2%) |21,903 (49.8%) |
| Toronto—Danforth
|Toronto South Region |16,767 (44.4%) |20,991 (55.6%) |
| Trinity—Spadina
|Toronto South Region |17,747 (40.7%) |25,815 (59.3%) |
| York Centre
|Toronto North Region |19,420 (60.3%) |12,774 (39.7%) |
| York South—Weston
|Toronto West Region |17,006 (56.7%) |12,991 (43.3%) |
| York West
|Toronto West Region |12,092 (54.3%) |10,194 (45.7%) |
| Totals
| |416,200 (55.4%) |334,756 (44.6%) |
Province-wide results summary
| class="wikitable"
! Region set ! First-past-the-post ! Mixed-member proportional |
| Excluding Toronto
|2,297,820 (64.8%) |1,246,985 (35.2%) |
| Toronto Regions
| 416,200 (55.4%) | 334,756 (44.6%) |
| All Regions
|2,714,020 (63.2%) |1,581,741 (36.8%) |
Ontario electoral reform referendum, 2007, detailed results
Ontario electoral reform referendum, detailed results