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Thai Region

 

NORTHERN

,9 Provinces.

Chiang Mai
Chiang Rai
Lampang
Lamphun
Mae Hong Son
Nan
Phayao
Phrae
Uttaradit

EASTERN

,7 Provinces.

Chachoengsao
Chanthaburi
Chon Buri
Prachinburi
Rayong
Sa Kaeo
Trat

 

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Provincial List!

Frequently Asked Questions

Thailand uses 5-digit postal codes. The first two digits represent the province, and the last three digits represent the district and subdistrict.
Bangkok postal codes start with 10. For example, Sukhumvit area is 10110, Silom is 10500, and Chatuchak is 10900.
No, different subdistricts (tambon) within the same district (amphoe) may have different postal codes.

Recent Updates

Data Updated
February 2026

Updated all 77 provinces with latest postal code information from Thailand Post.

Multi-language Support
January 2026

Added Japanese and Chinese translations for all provinces and districts.