About postal code 31640
The postal code 31640 routes mail to San Andrés in the Chihuahua region of Mexico. Use it as the postal segment of any address in this area, and confirm unusual addresses with the local postal operator.
Mexico · Postal code
31640 - San Andrés
Postal code 31640 is San Andrés in Chihuahua, Mexico.
| Postal code | 31640 |
| Place | San Andrés |
| Region | Chihuahua |
| District | Riva Palacio |
| Country | Mexico (MX) |
| Coordinates | 28.5473, -106.5035 (map) |