Farmington, IL zip code
Farmington, Illinois uses one zip code: 61531. Most of it is in Fulton County. Together these zip codes are home to about 3K people.
Zip codes
1
Population
3K
All zips combined
Largest zip
61531
3,007 residents
Zip codes in Farmington
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 61531 | 3,007 | $70,107 |