9 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 45601 | Chillicothe | 55,836 |
| 45628 | Frankfort | 5,999 |
| 45612 | Bainbridge | 4,933 |
| 45644 | Kingston | 4,619 |
| 43115 | Clarksburg | 1,796 |
| 45681 | South Salem | 1,451 |
| 45673 | Richmond Dale | 473 |
| 43101 | Adelphi | 316 |
| 45617 | Bourneville | 0 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 9 ZCTAs in Ross County, Ohio (US Census).