Keithsburg, IL zip code
Keithsburg, Illinois uses one zip code: 61442. Most of it is in Mercer County. Together these zip codes are home to about 504 people.
Zip codes
1
Population
504
All zips combined
Largest zip
61442
504 residents
Zip codes in Keithsburg
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 61442 | 504 | $48,750 |