16 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 61443 | Kewanee | 13,584 |
| 61254 | Geneseo | 12,103 |
| 61241 | Colona | 6,775 |
| 61273 | Orion | 3,175 |
| 61434 | Galva | 2,986 |
| 61238 | Cambridge | 2,985 |
| 61235 | Atkinson | 1,464 |
| 61490 | Woodhull | 1,103 |
| 61234 | Annawan | 1,073 |
| 61413 | Alpha | 1,012 |
| 61262 | Lynn Center | 734 |
| 61274 | Osco | 269 |
| 61233 | Andover | 253 |
| 61468 | Ophiem | 190 |
| 61258 | Hooppole | 188 |
| 61419 | Bishop Hill | 151 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 16 ZCTAs in Henry County, Illinois (US Census).