ZIP CodesZIP codes in Jackson County, Ohio
Jackson County, Ohio has 4 ZIP codes in this list, from 45621 to 45692. They cover 4 places, among them Coalton, Jackson, Oak Hill and Wellston.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 45621 | Coalton | 0.5 | 39.111, -82.608 |
| 45640 | Jackson | 175 | 39.043, -82.647 |
| 45656 | Oak Hill | 134 | 38.892, -82.588 |
| 45692 | Wellston | 81.6 | 39.119, -82.549 |
The ZIP code areas of Jackson County add up to about 390 square miles of land (1,011 sq km) as the Census Bureau draws them. The largest is 45640 (Jackson), with 175 square miles.
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Coalton, OH 45621.
- 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.