Madison County ZIP Codes
Madison County is a county of Ohio.
- ZIP codes
- 6
- Cities & towns
- 6
- Area codes
- 6
- Land area
- 467 sq mi
Every ZIP code in Madison County
| ZIP code | City |
|---|---|
| 43064 | Plain City |
| 43140 | London |
| 43143 | Mount Sterling |
| 43151 | Sedalia |
| 43153 | South Solon |
| 43162 | West Jefferson |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Madison County codes above are listed without a column we would have to invent.
Cities and towns in Madison County
A further 1 place in Madison County appears in the postal source without a page of its own; its codes are in the table above and each one links to its own page.
Area codes covering Madison County
Telephone and postal boundaries are drawn by different bodies, so these codes overlap the county without matching its edges.
- 220 Area code 220
- 326 Area code 326
- 380 Area code 380
- 614 Area code 614
- 740 Area code 740
- 937 Area code 937
Where Madison County's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Scope every ZIP code recorded in Madison County. Source GeoNames US postal codes (2026-07 postal dump), Census 2024 county Gazetteer (2024 Gazetteer) and geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot). Updated . The outline is a convex envelope of ZIP reference points, not a jurisdiction boundary.