ZIP CodesZIP codes in Hancock County, Illinois
Hancock County, Illinois has 16 ZIP codes in this list, from 61450 to 62380. They cover 16 places, among them La Harpe, Augusta, Basco and Bowen.
Nothing in this county matches.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 61450 | La Harpe | 76.4 | 40.585, -90.969 |
| 62311 | Augusta | 48.6 | 40.234, -90.955 |
| 62313 | Basco | 41.2 | 40.328, -91.197 |
| 62316 | Bowen | 44.5 | 40.234, -91.070 |
| 62321 | Carthage | 168 | 40.413, -91.100 |
| 62329 | Colusa | no area | 40.571, -91.168 |
| 62330 | Dallas City | 86.6 | 40.572, -91.126 |
| 62334 | Elvaston | 0.8 | 40.395, -91.250 |
| 62336 | Ferris | 0.2 | 40.469, -91.170 |
| 62341 | Hamilton | 46.6 | 40.396, -91.339 |
| 62354 | Nauvoo | 36.6 | 40.526, -91.332 |
| 62358 | Niota | 41.8 | 40.598, -91.299 |
| 62367 | Plymouth | 125 | 40.324, -90.967 |
| 62373 | Sutter | 48.2 | 40.286, -91.373 |
| 62379 | Warsaw | 98.6 | 40.354, -91.435 |
| 62380 | West Point | 39.0 | 40.255, -91.183 |
The ZIP code areas of Hancock County add up to about 902 square miles of land (2,335 sq km) as the Census Bureau draws them. The largest is 62321 (Carthage), with 168 square miles.
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: La Harpe, IL 61450.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.