County · Illinois · United States
Carroll County ZIP codes
7 ZIP codes · 7 cities · FIPS 17015
Key facts
- State
- Illinois (IL)
- FIPS code
- 17015
- Population
- 15,621
- Median household income
- $60,871
- Median age
- 44.9
- Land area
- 445.4 sq mi (1,153.6 km²)
- Population density
- 35 / sq mi
- Area codes
- 779, 815
Cities and ZIP codes in Carroll County (7)
| City | ZIP codes |
|---|---|
| Chadwick | 61014 |
| Lanark | 61046 |
| Milledgeville | 61051 |
| Mount Carroll | 61053 |
| Savanna | 61074 |
| Shannon | 61078 |
| Thomson | 61285 |
About this page
County figures are Census county-level values (ACS 5-year); the ZIP list shows the ZIPs whose primary county this is — a ZIP on a border can also serve neighbouring counties.
Sources: U.S. Census Bureau (2020 county relationship file, ACS 5-year) · GeoNames. Methodology.