Hancock County, Illinois ZIP Codes
- ZIP records
16 - Cities represented
16 - Sum of listed ZIP population estimates
18,420
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 | 62321 | Carthage | 3,576 |
| 2 | 62341 | Hamilton | 3,433 |
| 3 | 62379 | Warsaw | 1,854 |
| 4 | 61450 | La Harpe | 1,812 |
| 5 | 62330 | Dallas City | 1,472 |
| 6 | 62354 | Nauvoo | 1,447 |
| 7 | 62367 | Plymouth | 1,294 |
| 8 | 62311 | Augusta | 872 |
| 9 | 62316 | Bowen | 705 |
| 10 | 62358 | Niota | 525 |
Cities in Hancock County
- Augusta
- Basco
- Bowen
- Carthage
- Dallas City
- Elvaston
- Ferris
- Hamilton
- La Harpe
- Nauvoo
- Niota
- Plymouth
- Sutter
- Tennessee
- Warsaw
- West Point
ZIP Directory
- ZIP 61450
- ZIP 62311
- ZIP 62313
- ZIP 62316
- ZIP 62321
- ZIP 62330
- ZIP 62334
- ZIP 62336
- ZIP 62341
- ZIP 62354
- ZIP 62358
- ZIP 62367
- ZIP 62373
- ZIP 62374
- ZIP 62379
- ZIP 62380
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.