About postal code 57140
The postal code 57140 routes mail to Chiang Khong in the Chiang Rai region of Thailand. Use it as the postal segment of any address in this area, and confirm unusual addresses with the local postal operator.
Thailand ยท Postal code
57140 - Chiang Khong
Postal code 57140 is Chiang Khong in Chiang Rai, Thailand.
| Postal code | 57140 |
| Place | Chiang Khong |
| Region | Chiang Rai |
| Country | Thailand (TH) |
| Coordinates | 20.2833, 100.4 (map) |