ZIP CodesZIP codes in Ross County, Ohio
Ross County, Ohio has 11 ZIP codes in this list, from 43101 to 45681. They cover 11 places, among them Adelphi, Clarksburg, Chillicothe and Bainbridge.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 43101 | Adelphi | 0.3 | 39.467, -82.747 |
| 43115 | Clarksburg | 44.5 | 39.490, -83.156 |
| 45601 | Chillicothe | 349 | 39.338, -82.990 |
| 45612 | Bainbridge | 112 | 39.213, -83.276 |
| 45617 | Bourneville | 0.2 | 39.280, -83.159 |
| 45628 | Frankfort | 75.8 | 39.391, -83.203 |
| 45633 | Hallsville | no area | 39.466, -82.748 |
| 45644 | Kingston | 60.9 | 39.441, -82.849 |
| 45647 | Londonderry | 66.2 | 39.272, -82.783 |
| 45673 | Richmond Dale | 0.5 | 39.204, -82.812 |
| 45681 | South Salem | 36.2 | 39.302, -83.272 |
The ZIP code areas of Ross County add up to about 745 square miles of land (1,929 sq km) as the Census Bureau draws them. The largest is 45601 (Chillicothe), with 349 square miles.
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Adelphi, OH 43101.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.