| Capital: | Gallipolis |
|---|---|
| Origen y Formación del condado: | Washington and Adams Counties |
| Población: | 30,934 habitantes |
| Área: | 468 sq mi |
| Localización del condado dentro de Ohio: |
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Localidades en Gallia, Ohio
- Addison Township Gallia County
- Bidwell
- Cheshire
- Cheshire Township Gallia County
- Clay Township Gallia County
- Crown City
- Gallipolis
- Gallipolis Township Gallia County
- Greenfield Township Gallia County
- Green Township Gallia County
- Guyan Township Gallia County
- Harrison Township Gallia County
- Huntington Township Gallia County
- Kerr
- Morgan Township Gallia County
- Ohio Township Gallia County
- Patriot
- Perry Township Gallia County
- Raccoon Township Gallia County
- Rio Grande
- Springfield Township Gallia County
- Thurman
- Vinton
- Walnut Township Gallia County