Postal codes in Thailand

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File:Thailand postbox 01.jpg

Postal codes in Thailand are five digit numbers. The first two digits of the postal code denote the province or special administrative area (e.g., 43120 Phon Phisai, Nong Khai), while the last 3 digits represent the post office within the province.{{cite web|title=Reading postal cost|url=http://legacy.orst.go.th/?page_id=10341|publisher=Office of the Royal Society|accessdate=2022-02-10}} There are exceptions, for example, Bangkok and Samut Prakan province shared the first two digits 10xxx. It is typical to use postal code ended with zero 0 because they are assigned to post office that are responsible for delivering mail to the district (amphoe or khet).{{cite journal |last=Kongmuang |first=Charatdao |date=2017 |title=ประโยชน์ของรหัสไปรษณีย์ มีมากกว่าการส่งจดหมาย |trans-title=Uses of Postcode: More than Delivering Letter |url=https://so04.tci-thaijo.org/index.php/jssnu/article/download/210935/146069/664213 |language=Thai |journal=Journal of Social Sciences, Naresuan University |volume=13 |issue=1 |pages= |doi=10.14456/jssnu.2017.6 |access-date=2022-02-23}} For example, mails to Dusit district destinations uses postal code 10300 except within Chitralada Palace where postal code 10303 is used.{{cite web|url=https://www.thairath.co.th/lifestyle/life/2248741|title=รหัสไปรษณีย์ประเทศไทย 77 จังหวัด ครบถ้วนในที่เดียว|publisher=Thai Rath|access-date=2022-02-23}} 10300 is postal code of Dusit Post Office which handles the delivery throughout Dusit district while 10303 is postal code of Chitralada Palace Post Office which does not deliver mails outside the palace.{{cite web|url=https://file.thailandpost.com/upload/content/()_5805c8a63c7c3.pdf|title=List of all post offices|publisher=Thailand Post|access-date=2022-02-23}} Other post offices in Dusit district exist, such as Bang Krabu Post Office with postal code 10301, the code used for mails to be delivered to P.O. Box in the post office.

Postcodes in Thailand were introduced in February 1982. They are issued by the Ministry of Digital Economy and Society (MDES).

class= "wikitable"

! colspan= "12"| Postcode

colspan= "6" style= "background:#7fffd4;"| Province (Changwat)

| colspan= "6" style= "background:#f4a460;"| District (Amphoe)

colspan= "6"; style= "text-align:right; background:#7fffd4;"|XX

| colspan= "6"; style= "text-align:left; background:#f4a460;"|XXX

colspan= "12"; style= "text-align:center;"| Not in the postcode in Thailand
rowspan= "2" colspan= "3"| Subdistrict
(Tambon)

| colspan= "3" style="text-align:center;"| Village
(Muban)

| colspan= "3" style="text-align:center;"| Road
(Thanon)

| colspan= "3" style="text-align:center;"| Plot/house
888/26

Postal zones in Thailand

File:Postal zones in Thailand.png

Postal zone is the first digit of postal code. It is numbered from 1 to 9. Nong Bua Lamphu province and Bueng Kan province have to use postal zone 3 despite its location because at the time of their establishment, postal zone 4 was fully used.

class= "wikitable" style="width:36%; right"

|+ Postal zones

! Postcode

! Zone

style= "text-align:left;"| 10xxx - 18xxx

| style= "text-align:left;"| 1: Central zone

style= "text-align:left;"| 20xxx - 27xxx

| style= "text-align:left;"| 2: Eastern zone

style= "text-align:left;"| 30xxx - 39xxx

| style= "text-align:left;"| 3: Northeastern part 1

style= "text-align:left;"| 40xxx - 49xxx

| style= "text-align:left;"| 4: Northeastern part 2

style= "text-align:left;"| 50xxx - 58xxx

| style= "text-align:left;"| 5: Upper Northern zone

style= "text-align:left;"| 60xxx - 67xxx

| style= "text-align:left;"| 6: Lower Northern zone

style= "text-align:left;"| 70xxx - 77xxx

| style= "text-align:left;"| 7: Lower Central zone

style= "text-align:left;"| 80xxx - 86xxx

| style= "text-align:left;"| 8: Southern zone

style= "text-align:left;"| 90xxx - 96xxx

| style= "text-align:left;"| 9: Southern border zone

Province and special administrative area

Listed below are the first 2 digits of codes assigned to each province or special administrative area.{{cite web|url=https://file.thailandpost.com/upload/content/_5e85676dab05a.pdf|title=Postal code according to area|publisher=Thailand Post|access-date=2022-02-26}}

=Special Governed Districts (Khet Phiset)=

=Province codes=

class="wikitable" align="left" style="width:30%; display:inline-table;"

|+ 1: Central zone

! Province

! Postcode

Bangkok10xxx
Samut Prakan10xxx
Nonthaburi11xxx
Pathum Thani12xxx
Ayutthaya13xxx
Ang Thong14xxx
Lopburi15xxx
Sing Buri16xxx
Chai Nat17xxx
Saraburi18xxx

class="wikitable" style="width:30%; display:inline-table;"

|+ 2: Eastern zone

! Province

! Postcode

Chonburi20xxx
Rayong21xxx
Chanthaburi22xxx
Trat23xxx
Chachoengsao24xxx
Prachinburi25xxx
Nakhon Nayok26xxx
Sa Kaeo27xxx

class="wikitable" style="width:30%; display:inline-table;"

|+ 3: Northeastern part 1

! Province

! Postcode

Nakhon Ratchasima30xxx
Buriram31xxx
Surin32xxx
Sisaket33xxx
Ubon Ratchathani34xxx
Yasothon35xxx
Chaiyaphum36xxx
Amnat Charoen37xxx
Bueng Kan38xxx
Nong Bua Lamphu39xxx

class="wikitable" style="width:30%; display:inline-table;"

|+ 4: Northeastern part 2

! Province

! Postcode

Khon Kaen40xxx
Udon Thani41xxx
Loei42xxx
Nong Khai43xxx
Maha Sarakham44xxx
Roi Et45xxx
Kalasin46xxx
Sakon Nakhon47xxx
Nakhon Phanom48xxx
Mukdahan49xxx

class="wikitable" style="width:30%; display:inline-table;"

|+ 5: Upper Northern zone

! Province

! Postcode

Chiang Mai50xxx
Lamphun51xxx
Lampang52xxx
Uttaradit53xxx
Phrae54xxx
Nan55xxx
Phayao56xxx
Chiang Rai57xxx
Mae Hong Son58xxx

class="wikitable" style="width:30%; display:inline-table;"

|+ 6: Lower Northern zone

! Province

! Postcode

Nakhon Sawan60xxx
Uthai Thani61xxx
Kamphaeng Phet62xxx
Tak63xxx
Sukhothai64xxx
Phitsanulok65xxx
Phichit66xxx
Phetchabun67xxx

class="wikitable" style="width:30%; display:inline-table;"

|+ 7: Lower Central zone

! Province

! Postcode

Ratchaburi70xxx
Kanchanaburi71xxx
Suphan Buri72xxx
Nakhon Pathom73xxx
Samut Sakhon74xxx
Samut Songkhram75xxx
Phetchaburi76xxx
Prachuap Khiri Khan77xxx

class="wikitable" style="width:30%; display:inline-table;"

|+ 8: Southern zone

! Province

! Postcode

Nakhon Si Thammarat80xxx
Krabi81xxx
Phang Nga82xxx
Phuket83xxx
Surat Thani84xxx
Ranong85xxx
Chumphon86xxx

class="wikitable" style="width:30%; display:inline-table;"

|+ 9: Southern border zone

! Province

! Postcode

Songkhla90xxx
Satun91xxx
Trang92xxx
Phatthalung93xxx
Pattani94xxx
Yala95xxx
Narathiwat96xxx

Numbering within the province

The third and fourth digits are used to distinguish different areas within the province. The last digit is zero for the main post office handling the mail delivery, while other post offices in the area have other numbers.

Outside of Bangkok and Samut Prakan, the postal code xx000 is the postal code for the main post office of Amphoe mueang of each province. The remaining area number runs in the sequence xx110, xx120, xx130, ..., xx190, xx210, ...

Bangkok's number system replaces the previous mail addressing system of Bangkok 1, Bangkok 2, etc. The Bangkok 1 area becomes 10100, Bangkok 2 becomes 10200, etc. There is special case that Bangkok 10 becomes 10310, while Bangkok 11, 12, etc. becomes 10110, 10120, etc. There is no postal area 10000, as the number is assigned to Bangkok Mail Center.{{cite web|url=https://postbase.thailandpost.co.th/en/service-point/%E0%B8%A8%E0%B8%9B-%E0%B8%81%E0%B8%A3%E0%B8%B8%E0%B8%87%E0%B9%80%E0%B8%97%E0%B8%9E|title=Find Service Point|access-date=2024-04-17|publisher=Thailand Post}}

Mail facilities

In 2018 Thailand Post allocated 10 billion baht to construct two new "automated sorting" centers, one in Chonburi Province and the other in Wang Noi District, Ayutthaya Province. Its goal is to fully automate postal and delivery operations as well back office procedures in 2021.{{cite news|last1=Tortermvasana|first1=Komsan|title=Thailand Post aims to upgrade sorting|url=https://www.bangkokpost.com/business/1524846/thailand-post-aims-to-upgrade-sorting|access-date=25 August 2018|work=Bangkok Post|date=20 August 2018}}

References

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