Rio Grande, OH ZIP code
The ZIP code for Rio Grande, Ohio is 45674. It is in Gallia County.
- Population in these ZIPs
- 618
- Avg. median income
- $20,900population-weighted
- Typical home value
- $185,700population-weighted
- Metro area
- Gallipolis, OH
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Rio Grande, OH ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 45674 | 618 | $20,865 | $185,700 |
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 near Rio Grande
- Thurman 6 mi
- Bidwell 7 mi
- Gallipolis 7 mi
- Patriot 8 mi
- Vinton 9 mi
- Oak Hill 11 mi
- Waterloo 13 mi
- Cheshire 14 mi
- Langsville 15 mi
- Middleport 17 mi
- Crown City 17 mi
- South Webster 18 mi
Frequently asked questions
What is the ZIP code for Rio Grande, OH?
The ZIP code for Rio Grande, OH is 45674.
What county is Rio Grande, Ohio in?
Rio Grande ZIP codes are in Gallia County.