Rio Grande is a village in Gallia County, Ohio, United States. The population was 830 at the 2010 census. It is part of the Point Pleasant, WV - OH Micropolitan Statistical Area.Although the town is named after the river in the southern United States, its name is pronounced "Rye-O Grand" rather than the traditional Spanish pronunciation so that it rhymes with "Ohio."Rio Grande is home to the University of Rio Grande/Rio Grande Community College, the alma mater of Bevo Francis, who set and until recently still held the NCAA basketball single-game scoring record. It is also the original location of Bob Evans Restaurants. The restaurant chain began as a single truck stop diner in Rio Grande.HistoryThe name of Rio Grande was chosen to commemorate the Mexican–American War.GeographyRio Grande is located at (38.883731, -82.379968).