| ZIP Codes: | 10 ZIP Codes (8 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Codes: | 419 / 567 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:13:23 PM |
| Population: | 37,660 [See All] |
| FIPS: | 39171 |
| Land Area: | 474 sq mi |
| Water Area: | 2 sq mi |
| Coordinates: | 41.5663, -84.5726 |
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37,660 residents live across 10 ZIPs covering 474 sq mi, served by 10 distinct USPS-recognized cities.
Population moved from 39,175 to 37,660 from 2014 to 2024 — a -3.9% change. 5 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 43518 (Edon, $86,200 median) and poorest ZIP 43531 (Kunkle, $36,200) are 13.3 miles apart — a 2.4× income gap across local geography.
Median home values vary 3.5× across this county — from $46,700 in 43531 (Kunkle) to $162,000 in 43506 (Bryan).
Density varies 4670× across the county — from 28 people/sq mi in 43501 (Alvordton) to 132,500 in 43531 (Kunkle).
Educational attainment ranges from 8.5% bachelor's+ in 43543 (Montpelier) to 19.3% in 43518 (Edon) — the breadth of educational profiles across the area.
Within Ohio, this is the #65 most populous of 88 counties and ranks #67 for median household income .
Weighted by population, the typical household earns about $63,706 across the county — reflecting what a typical resident sees, not a simple ZIP average.
14.2% of adults age 25+ hold a bachelor's degree or higher (3,759 of 26,522 reporting).
8 Standard delivery, 2 PO Box only, 0 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 43506 | Bryan | Standard | 14,734 | $60,234 | 105.5 | 1.3% |
| 43543 | Montpelier | Standard | 7,401 | $56,236 | 84.0 | -12.2% |
| 43517 | Edgerton | Standard | 3,442 | $58,578 | 65.3 | -9.7% |
| 43557 | Stryker | Standard | 3,284 | $84,950 | 43.8 | -0.2% |
| 43518 | Edon | Standard | 2,897 | $86,200 | 68.4 | 12.7% |
| 43570 | West Unity | Standard | 2,867 | $68,500 | 45.3 | -8.1% |
| 43554 | Pioneer | Standard | 2,037 | $52,917 | 36.5 | -22.6% |
| 43501 | Alvordton | Standard | 715 | $68,203 | 25.2 | 11.2% |
| 43531 | Kunkle | PO Box | 212 | $36,200 | 0.0 | 158.5% |
| 43505 | Blakeslee | PO Box | 71 | — | 0.1 | 12.7% |