Colorado currently has sixty-four counties. In February 1866, the first new county, Las Animas, was created. Alamosa was created in 1913, and in 2001, Broomfield was recognized as a city-county, bringing a total of 64 counties.
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Rio Grande County Education, Geography, and History
RioGrande County is one of the 64 counties of the state of Colorado. Based on the 2010 census, the
population was 11,982. The countyseat 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.
Etymology - Origin of Rio Grande County Name
Rio Grande County is named for the Rio Grande, which runs through the county.