Osco, IL ZIP code
The ZIP code for Osco, Illinois is 61274. It is in Henry County.
- Population in these ZIPs
- 197
- Avg. median income
- $72,000population-weighted
- Typical home value
- $128,800population-weighted
- Metro area
- Davenport-Moline-Rock Island, IA-IL
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Osco, IL ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 61274 | 197 | $72,000 | $128,800 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Osco
- Andover 5 mi
- Orion 6 mi
- Lynn Center 7 mi
- Cambridge 8 mi
- Colona 8 mi
- Coal Valley 9 mi
- Geneseo 9 mi
- Ophiem 10 mi
- Carbon Cliff 10 mi
- Barstow 11 mi
- Silvis 11 mi
- East Moline 12 mi
Frequently asked questions
What is the ZIP code for Osco, IL?
The ZIP code for Osco, IL is 61274.
What county is Osco, Illinois in?
Osco ZIP codes are in Henry County.