13 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 45875 | Ottawa | 10,861 |
| 45830 | Columbus Grove | 5,403 |
| 45856 | Leipsic | 5,290 |
| 45831 | Continental | 3,566 |
| 45844 | Fort Jennings | 2,905 |
| 45877 | Pandora | 2,452 |
| 45827 | Cloverdale | 2,151 |
| 45853 | Kalida | 1,685 |
| 45876 | Ottoville | 913 |
| 45864 | Miller City | 185 |
| 45893 | Vaughnsville | 166 |
| 45848 | Glandorf | 106 |
| 45815 | Belmore | 69 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 13 ZCTAs in Putnam County, Ohio (US Census).