| ZIP Codes: | 10 ZIP Codes (8 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Codes: | 326 / 419 / 567 / 937 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:13:20 PM |
| Population: | 31,646 [See All] |
| FIPS: | 39065 |
| Land Area: | 502 sq mi |
| Water Area: | 0 sq mi |
| Coordinates: | 40.6712, -83.6776 |
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31,646 residents live across 10 ZIPs covering 502 sq mi, served by 10 distinct USPS-recognized cities.
Population moved from 32,792 to 31,408 from 2014 to 2024 — a -4.2% change. 4 ZIPs gained residents, 4 lost (and 1 held flat).
The county's wealthiest ZIP 43345 (Ridgeway, $90,821 median) and poorest ZIP 45812 (Alger, $44,045) are 17.2 miles apart — a 2.1× income gap across local geography.
Median home values vary 2.6× across this county — from $77,900 in 45859 (Mc Guffey) to $201,600 in 43345 (Ridgeway).
Density varies 45× across the county — from 23 people/sq mi in 43345 (Ridgeway) to 1,030 in 45859 (Mc Guffey).
Educational attainment ranges from 4.8% bachelor's+ in 45859 (Mc Guffey) to 31.8% in 45810 (Ada) — the breadth of educational profiles across the area.
Within Ohio, this is the #71 most populous of 88 counties and ranks #64 for median household income .
Weighted by population, the typical household earns about $64,209 across the county — reflecting what a typical resident sees, not a simple ZIP average.
19.1% of adults age 25+ hold a bachelor's degree or higher (3,682 of 19,291 reporting).
8 Standard delivery, 2 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 |
|---|---|---|---|---|---|---|
| 43326 | Kenton | Standard | 12,573 | $63,785 | 189.4 | -5.0% |
| 45810 | Ada | Standard | 7,449 | $63,451 | 65.1 | -11.6% |
| 45843 | Forest | Standard | 4,184 | $71,541 | 88.3 | 1.0% |
| 43340 | Mount Victory | Standard | 2,103 | $72,446 | 48.0 | 5.5% |
| 45812 | Alger | Standard | 2,027 | $44,045 | 38.3 | 12.1% |
| 45836 | Dunkirk | Standard | 1,573 | $56,250 | 24.3 | 0.0% |
| 43345 | Ridgeway | Standard | 666 | $90,821 | 29.1 | -8.3% |
| 45835 | Dola | Standard | 449 | $76,042 | 19.3 | 16.9% |
| 45859 | Mc Guffey | PO Box | 384 | $51,250 | 0.4 | -24.6% |
| 43346 | Roundhead | PO Box | 238 | $57,130 | 0.0 | — |