Carroll County, Illinois ZIP Codes
- ZIP records
7 - Cities represented
7 - Sum of listed ZIP population estimates
16,069
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 61074 | Savanna | 3,962 |
| 2 | 61046 | Lanark | 2,794 |
| 3 | 61285 | Thomson | 2,728 |
| 4 | 61053 | Mount Carroll | 2,590 |
| 5 | 61051 | Milledgeville | 1,469 |
| 6 | 61078 | Shannon | 1,459 |
| 7 | 61014 | Chadwick | 1,067 |
Cities in Carroll County
ZIP Directory
Browse all ZIP data for Illinois
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.