Osco, IL zip code
Osco, Illinois uses one zip code: 61274. Most of it is in Henry County. Together these zip codes are home to about 197 people.
Zip codes
1
Population
197
All zips combined
Largest zip
61274
197 residents
Zip codes in Osco
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 61274 | 197 | $72,000 |