Updated 2026

Search Thai Postal Codes All Subdistricts, Districts Nationwide

Easy, fast, and accurate search covering 77 provinces. Just type the subdistrict, district, or province name you need.

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Popular Provinces

Bangkok
Chiang Mai
Chon Buri
Samut Prakan
Nonthaburi
Pathum Thani
Khon Kaen
Nakhon Ratchasima
Phuket
Songkhla
Rayong
Phra Nakhon Si Ayutthaya

Search by Region

Central

Bangkok Nonthaburi Pathum Thani Phra Nakhon Si Ayutthaya Ang Thong Loburi Sing Buri Chai Nat Saraburi Samut Prakan Samut Sakhon Samut Songkhram Nakhon Pathom Suphan Buri

North

Chiang Mai Lamphun Lampang Uttaradit Phrae Nan Phayao Chiang Rai Mae Hong Son Nakhon Sawan Uthai Thani Kamphaeng Phet Sukhothai Phitsanulok Phichit Phetchabun

Northeast

Nakhon Ratchasima Buri Ram Surin Si Sa Ket Ubon Ratchathani Yasothon Chaiyaphum Amnat Charoen Nong Bua Lam Phu Khon Kaen Udon Thani Loei Nong Khai Maha Sarakham Roi Et Kalasin Sakon Nakhon Nakhon Phanom Mukdahan Bueng Kan

East

Chachoengsao Prachin Buri Sa Kaeo Nakhon Nayok Chon Buri Rayong Chanthaburi Trat

West

Tak Kanchanaburi Ratchaburi Phetchaburi Prachuap Khiri Khan

South

Nakhon Si Thammarat Krabi Phangnga Phuket Surat Thani Ranong Chumphon Songkhla Satun Trang Phatthalung Pattani Yala Narathiwat

Thai Postal Codes: More Than Just Numbers for Delivery

Many people are familiar with using postal codes for addressing letters or online orders. But did you know that these 5-digit numbers have an interesting history and system behind them?

History and Origin

In the past, before advanced communication technology, adhering to postal standards was crucial for mail delivery. This is why the postal code system was introduced.

Thailand officially adopted the Postal Code System in 1982 (B.E. 2525), managed by Thailand Post. This system allows officials to sort and deliver mail or parcels much more efficiently, without relying solely on reading handwritten province or district names which can lead to errors.

Thai Postal Code Structure

Thai postal codes consist of 5 digits, where each digit has a specific meaning:

  • 1st Digit: Indicates the region (e.g., 1 for Central/Bangkok, 5 for North).
  • 2nd Digit: Specifies the province within that region.
  • 3rd, 4th, 5th Digits: Pinpoint the specific district, subdistrict, or post office delivery area.

Regional Breakdown (1st Digit):

  • 1: Central (Bangkok, Nonthaburi, Ayutthaya)
  • 2: East (Chonburi, Rayong, Trat)
  • 3: Lower Northeast (Nakhon Ratchasima, Buriram)
  • 4: Upper Northeast (Khon Kaen, Udon Thani)
  • 5: North (Chiang Mai, Lampang)
  • 6: Upper Central (Nakhon Sawan, Phitsanulok)
  • 7: West (Ratchaburi, Kanchanaburi)
  • 8: Upper South (Nakhon Si Thammarat, Phuket)
  • 9: Lower South (Songkhla, Pattani)

For example, 10200 is for Phra Nakhon district in Bangkok, while 50000 is for Mueang district in Chiang Mai.

The Role of Postal Codes Today

Even though traditional letter writing has declined, the role of postal codes has significantly increased due to the e-commerce boom. Postal codes are vital data that helps online stores deliver products accurately, reducing errors and saving time.

More Than Just Delivery

Postal codes are also essential for:

  • Urban planning
  • Demographic data collection
  • Market analysis
  • Infrastructure development planning

Although a "Postal Code" seems like just a simple number we see daily, it reflects the systematic organization of the country and impacts our daily lives, from shipping and ordering goods to national-level planning.