There are 16 zip codes in Clark County, Ohio. The most populated is 45503, located in Springfield. * 2024 populations estimated based on the latest ACS 5-year data.
Zip Code | Population | City |
|---|---|---|
| 45503 | 32,714 | Springfield |
| 45505 | 20,485 | Springfield |
| 45502 | 17,715 | Springfield |
| 45344 | 16,747 | New Carlisle |
| 45504 | 16,069 | Springfield |
| 45506 | 13,145 | Springfield |
| 45323 | 5,170 | Enon |
| 45369 | 4,141 | South Vienna |
| 45368 | 4,125 | South Charleston |
| 45341 | 3,967 | Medway |
| 45319 | 372 | Donnelsville |
| 45372 | 314 | Tremont City |
| 43010 | 255 | Catawba |
| 45349 | 253 | North Hampton |
| 45316 | 139 | Clifton |
| 45501 | 0 | Springfield |