16 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 45503 | Springfield | 32,673 |
| 45505 | Springfield | 20,299 |
| 45502 | Springfield | 17,076 |
| 45344 | New Carlisle | 16,841 |
| 45504 | Springfield | 16,654 |
| 45506 | Springfield | 13,339 |
| 45323 | Enon | 4,954 |
| 45369 | South Vienna | 4,232 |
| 45368 | South Charleston | 3,860 |
| 45341 | Medway | 3,702 |
| 45319 | Donnelsville | 364 |
| 45372 | Tremont City | 286 |
| 45349 | North Hampton | 284 |
| 43010 | Catawba | 280 |
| 45316 | Clifton | 134 |
| 45501 | Springfield | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 16 ZCTAs in Clark County, Ohio (US Census).