Mount Sterling Ohio ZIP Codes
Mount Sterling holds a single ZIP code.
Every ZIP code in Mount Sterling
| ZIP code | County |
|---|---|
| 43143 | Madison County |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Mount Sterling codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Mount Sterling. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every Mount Sterling ZIP code begins 431. Those first three digits identify the sectional center facility that processes mail for this part of Ohio. Statewide that range covers 49 ZIP codes, so Mount Sterling accounts for 2% of it.
Every Ohio ZIP prefix and the region it covers →
Area codes covering Mount Sterling
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Mount Sterling occupies.
Mount Sterling Ohio area codes in full →
Where Mount Sterling's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Mount Sterling
| City | Distance | ZIP codes |
|---|---|---|
| Bloomingburg Ohio ZIP codes | 9.7 mi | 1 ZIP code |
| New Holland Ohio ZIP codes | 11 mi | 1 ZIP code |
| Williamsport Ohio ZIP codes | 12 mi | 1 ZIP code |
| Commercial Point Ohio ZIP codes | 15 mi | 1 ZIP code |
| Washington Court House Ohio ZIP codes | 15 mi | 1 ZIP code |
| Grove City Ohio ZIP codes | 15 mi | 1 ZIP code |
| London Ohio ZIP codes | 15 mi | 1 ZIP code |
| Jeffersonville Ohio ZIP codes | 15 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.