Rio Grande Flag

Rio Grande

County:
Gallia County
County Seat:
No
Area (mi²):
1.375
State:
Ohio

Rio Grande is a village located in Gallia County, Ohio. Rio Grande has a 2026 population of 724. Rio Grande is currently declining at a rate of 0% annually and its population has increased by 0.56% since the most recent census, which recorded a population of 720 in 2020.

724
Total Population
527
Density (mi²)