Hillsboro Ohio ZIP Codes
Hillsboro holds a single ZIP code.
Every ZIP code in Hillsboro
| ZIP code | County |
|---|---|
| 45133 | Highland 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Hillsboro codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Hillsboro. 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 Hillsboro ZIP code begins 451. 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 Hillsboro accounts for 2% of it.
Every Ohio ZIP prefix and the region it covers →
Area codes covering Hillsboro
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 Hillsboro occupies.
Hillsboro Ohio area codes in full →
Where Hillsboro's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Hillsboro
| City | Distance | ZIP codes |
|---|---|---|
| New Vienna Ohio ZIP codes | 9.0 mi | 1 ZIP code |
| Highland Ohio ZIP codes | 9.1 mi | 1 ZIP code |
| Leesburg Ohio ZIP codes | 9.5 mi | 1 ZIP code |
| Lynchburg Ohio ZIP codes | 9.5 mi | 1 ZIP code |
| Martinsville Ohio ZIP codes | 13 mi | 1 ZIP code |
| Mowrystown Ohio ZIP codes | 14 mi | 1 ZIP code |
| Sinking Spring Ohio ZIP codes | 15 mi | 1 ZIP code |
| Greenfield Ohio ZIP codes | 15 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.