| ZIP Codes: | 7 ZIP Codes (4 Standard, 3 PO Box, 0 Unique) [See All] |
| Area Codes: | 326 / 937 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 11:54:39 PM |
| Population: | 42,566 [See All] |
| FIPS: | 39071 |
| Land Area: | 560 sq mi |
| Water Area: | 5 sq mi |
| Coordinates: | 39.2142, -83.5765 |
| Quick Link: |
42,566 residents live across 7 ZIPs covering 560 sq mi, served by 7 distinct USPS-recognized cities.
Population moved from 41,545 to 42,566 from 2014 to 2024 — a +2.5% change. 5 ZIPs gained residents, 2 lost.
The county's wealthiest ZIP 45172 (Sinking Spring, $107,951 median) and poorest ZIP 45133 (Hillsboro, $61,842) are 9.9 miles apart — a 1.7× income gap across local geography.
Median home values vary 2.3× across this county — from $93,000 in 45155 (Mowrystown ) to $210,000 in 45135 (Leesburg).
Density varies 10× across the county — from 68 people/sq mi in 45142 (Lynchburg) to 698 in 45172 (Sinking Spring).
Educational attainment ranges from 9.8% bachelor's+ in 45142 (Lynchburg) to 22.8% in 45135 (Leesburg) — the breadth of educational profiles across the area.
Within Ohio, this is the #57 most populous of 88 counties and ranks #51 for median household income .
Weighted by population, the typical household earns about $65,071 across the county — reflecting what a typical resident sees, not a simple ZIP average.
15.8% of adults age 25+ hold a bachelor's degree or higher (4,578 of 28,975 reporting).
4 Standard delivery, 3 PO Box only, 0 single-entity Unique ZIPs serve this county.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 45133 | Hillsboro | Standard | 23,443 | $61,842 | 316.6 | 0.9% |
| 45123 | Greenfield | Standard | 8,740 | $62,404 | 104.0 | 2.1% |
| 45135 | Leesburg | Standard | 5,291 | $79,629 | 77.0 | 12.0% |
| 45142 | Lynchburg | Standard | 4,187 | $66,844 | 61.6 | -2.7% |
| 45155 | Mowrystown | PO Box | 510 | $72,813 | 0.0 | 66.1% |
| 45172 | Sinking Spring | PO Box | 308 | $107,951 | 0.4 | 100.0% |
| 45132 | Highland | PO Box | 87 | $35,417 | 0.0 | -65.9% |