ZIP CodesZIP codes in Madison County, Ohio
Madison County, Ohio has 6 ZIP codes in this list, from 43064 to 43162. They cover 6 places, among them Plain City, London, Mount Sterling and Sedalia.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 43064 | Plain City | 104 | 40.097, -83.269 |
| 43140 | London | 220 | 39.900, -83.444 |
| 43143 | Mount Sterling | 134 | 39.718, -83.281 |
| 43151 | Sedalia | 0.3 | 39.733, -83.476 |
| 43153 | South Solon | 51.8 | 39.742, -83.597 |
| 43162 | West Jefferson | 47.0 | 39.942, -83.285 |
The ZIP code areas of Madison County add up to about 556 square miles of land (1,441 sq km) as the Census Bureau draws them. The largest is 43140 (London), with 220 square miles.
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Plain City, OH 43064.
- 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.