Farmington zipcode
| City | Farmington |
| ZIP Code | 61531 |
| Type | Standard |
| State Code | IL |
| State | Illinois |
ZIP code of Farmington is 61531. This place is located in Illinois state in US. To send any postal service to Farmington, you must use 61531 zipcode.
The ZIP code 61531 is also used with 1 more city name of Illinois.
- Middlegrove, IL