Osco zip code
Zip code in Osco, IL
The location Osco belongs to Henry County, state of Illinois. Osco has been assigned with the zip code 61274.
Osco is the official name of the location so if you want to use the US Postal Service you must use that name.
| Zip code | Type | Population |
|---|---|---|
| 61274 | STANDARD | 300 |
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