Osco ZIP code, Illinois
The ZIP code for Osco, IL is 61274, and its area code is 309.
- USPS city name
- 1 ZIP code
- Population
- 74
- Area code
- 309
- County
- Henry County
- State
- Illinois
ZIP codes addressed as Osco
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
61274 | Osco , IL | Standard | 197 | $72,000 | $128,800 |
Map of Osco ZIP codes
The ZIP codes of Osco, IL, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Osco
The nearest larger towns are Andover (434 people, 3.6 mi), Orion (1,812 people, 4.9 mi) and Cambridge (2,128 people, 6.1 mi).
| Town | Population | Distance |
|---|---|---|
| Colona | 5,139 | 9.1 mi |
| Geneseo | 6,673 | 9.8 mi |
| Coal Valley | 4,229 | 10.3 mi |
| Silvis | 7,955 | 12.3 mi |
| East Moline | 20,904 | 13.2 mi |
| Moline | 42,197 | 14.4 mi |
| Milan | 5,034 | 15.8 mi |
| Rock Island | 36,151 | 17.8 mi |
| Le Claire, IA | 4,735 | 17.9 mi |
| Bettendorf, IA | 39,647 | 18.2 mi |
| Kewanee | 11,913 | 20.0 mi |
| Davenport, IA | 100,913 | 22.1 mi |
| Eldridge, IA | 6,818 | 25.4 mi |
| Aledo | 3,668 | 26.2 mi |
More nearby: every ZIP code in Henry County · Illinois ZIP codes
Cite this page
zipcodes.pro. “Osco, IL ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/il/osco
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