16 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 45331 | Greenville | 22,356 |
| 45304 | Arcanum | 7,599 |
| 45380 | Versailles | 5,394 |
| 45308 | Bradford | 4,385 |
| 45390 | Union City | 3,432 |
| 45303 | Ansonia | 2,188 |
| 45346 | New Madison | 1,663 |
| 45362 | Rossburg | 1,071 |
| 45348 | New Weston | 848 |
| 45388 | Yorkshire | 841 |
| 45332 | Hollansburg | 716 |
| 45328 | Gettysburg | 544 |
| 45358 | Pitsburg | 362 |
| 45351 | Osgood | 328 |
| 45352 | Palestine | 173 |
| 45350 | North Star | 69 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 16 ZCTAs in Darke County, Ohio (US Census).