Rio Grande County is one of the 64 counties of the state of Colorado. Based on the 2010 census, the population was 11,982. The county seat is Del Norte. Rio Grande County was created on February 10, 1874 from Costilla County and Conejos County. The county is named for the Rio Grande (Spanish language for "Big River"), which flows through the county.
Rio Grande County is named for the Rio Grande, which runs through the county.
County QuickFacts: CensusBureau Quick Facts
Rio Grande was created in 1874 from parts of Conejos and Costilla Counties.
As reported by the Census Bureau, the county has a total area of 912 square miles (2,362 km2), of which, 912 square miles (2,361 km2) of it is land and 1 square miles (1 km2) of it (0.06%) is water.
Rio Grande county is located in southwest Colorado. The Continental
Divide National Scenic Trail, Old Spanish National Historic Trail, and
Silver Thread Scenic Byway are located in Rio Grande County.
Bordering counties are as follows: