| ZIP Codes: | 9 ZIP Codes (7 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Codes: | 220 / 740 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:13:19 PM |
| Population: | 30,293 [See All] |
| FIPS: | 39053 |
| CBSA: | Gallipolis, OH |
| Land Area: | 502 sq mi |
| Water Area: | 5 sq mi |
| Coordinates: | 38.8621, -82.3253 |
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30,293 residents live across 9 ZIPs covering 502 sq mi, served by 9 distinct USPS-recognized cities.
Population moved from 32,125 to 30,293 from 2014 to 2024 — a -5.7% change. 2 ZIPs gained residents, 6 lost.
The county's wealthiest ZIP 45620 (Cheshire, $76,646 median) and poorest ZIP 45674 (Rio Grande, $20,865) are 13.1 miles apart — a 3.7× income gap across local geography.
Median home values vary 1.6× across this county — from $115,000 in 45685 (Thurman) to $185,700 in 45674 (Rio Grande).
Density varies 38× across the county — from 27 people/sq mi in 45658 (Patriot) to 1,046 in 45674 (Rio Grande).
Educational attainment ranges from 11.4% bachelor's+ in 45674 (Rio Grande) to 26.4% in 45614 (Bidwell) — the breadth of educational profiles across the area.
Within Ohio, this is the #73 most populous of 88 counties and ranks #79 for median household income .
Weighted by population, the typical household earns about $57,724 across the county — reflecting what a typical resident sees, not a simple ZIP average.
20.9% of adults age 25+ hold a bachelor's degree or higher (4,312 of 20,681 reporting).
7 Standard delivery, 2 PO Box only, 0 single-entity Unique ZIPs serve this county.
Median household income spans 3.7× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.
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.
Gallia County lost 5.7% of residents between 2014 and 2024. ZIPs that shed the largest share:
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 45631 | Gallipolis | Standard | 13,386 | $56,835 | 115.8 | -9.0% |
| 45614 | Bidwell | Standard | 5,450 | $60,000 | 71.2 | 9.4% |
| 45686 | Vinton | Standard | 3,372 | $55,030 | 94.4 | -7.1% |
| 45623 | Crown City | Standard | 3,203 | $57,118 | 72.7 | 0.8% |
| 45658 | Patriot | Standard | 2,539 | $64,162 | 93.3 | -3.1% |
| 45685 | Thurman | Standard | 1,050 | $61,700 | 30.6 | -7.6% |
| 45620 | Cheshire | Standard | 675 | $76,646 | 23.3 | -41.7% |
| 45674 | Rio Grande | PO Box | 618 | $20,865 | 0.6 | -13.3% |
| 45643 | Kerr | PO Box | — | — | 0.0 | — |