Gallia County, Ohio ZIP codes
8 ZIP codes are in Gallia County, plus 5 that cross in from neighboring counties. It's part of the Gallipolis, OH micro area.
- ZIP codes
- 8
- Population in these ZIPs
- 29,243
- Avg. median income
- $57,600population-weighted
- Cities & towns
- 8
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Gallia County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 45614 | Bidwell | 5,450 | $60,000 | $187,700 |
| 45620 | Cheshire | 675 | $76,646 | $135,800 |
| 45623 | Crown City | 3,203 | $57,118 | $147,300 |
| 45631 | Gallipolis | 13,386 | $56,835 | $176,200 |
| 45643 PO Box | Kerr | — | — | — |
| 45658 | Patriot | 2,539 | $64,162 | $191,600 |
| 45674 | Rio Grande | 618 | $20,865 | $185,700 |
| 45686 | Vinton | 3,372 | $55,030 | $154,100 |
ZIP codes partly in Gallia County
These ZIP codes are mostly in a neighboring county but cover part of Gallia County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 45656 | Oak Hill | Jackson County | 7,013 | $59,395 | $122,200 |
| 45678 | Scottown | Lawrence County | 1,034 | $62,992 | $153,000 |
| 45685 | Thurman | Jackson County | 1,050 | $61,700 | $198,000 |
| 45688 | Waterloo | Lawrence County | 210 | — | $52,700 |
| 45760 | Middleport | Meigs County | 3,844 | $46,905 | $84,800 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Gallia County
Nearby counties
Frequently asked questions
How many ZIP codes are in Gallia County, Ohio?
8 ZIP codes are mainly in Gallia County, and 5 more ZIP codes from neighboring areas reach partly into it.
What cities are in Gallia County?
ZIP codes in Gallia County use the city names Bidwell, Cheshire, Crown City, Gallipolis, Kerr, Patriot, Rio Grande and Vinton.
What metro area is Gallia County in?
Gallia County is part of the Gallipolis, OH micropolitan statistical area.