8 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 46135 | Greencastle | 19,696 |
| 46120 | Cloverdale | 5,881 |
| 46128 | Fillmore | 2,277 |
| 46172 | Roachdale | 2,243 |
| 46171 | Reelsville | 1,949 |
| 46105 | Bainbridge | 1,741 |
| 46175 | Russellville | 538 |
| 46170 | Putnamville | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 8 ZCTAs in Putnam County, Indiana (US Census).