| Zip Code | City | Population ↓ |
|---|---|---|
| 46714 | Bluffton | 15,367 |
| 46777 | Ossian | 6,106 |
| 46770 | Markle | 2,820 |
| 46791 | Uniondale | 1,015 |
| 46731 | Craigville | 921 |
| 46781 | Poneto | 791 |
| 46759 | Keystone | 441 |
| 46766 | Liberty Center | 422 |
| 46799 | Zanesville | 409 |
| 46778 | Petroleum | 103 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 10 ZCTAs in Wells County, Indiana (US Census).