Map of Costilla County, Colorado

Costilla County (Spanish for “rib”) is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 3,499. The county seat is San Luis, the oldest continuously occupied town in Colorado.

Costilla County overview:
Name:Costilla County
FIPS code:08-023
State:Colorado
Founded:November 1, 1861
Seat:San Luis
Largest town:San Luis
Total Area:1,230 sq mi (3,200 km²)
Land Area:1,227 sq mi (3,180 km²)
Total Population:3,625
Population Density:2.9/sq mi (1.1/km²)
Time zone:UTC−7 (Mountain)
Summer Time Zone (DST):UTC−6 (MDT)
Website:costillacounty.colorado.gov

Costilla County location map. Where is Costilla County?

Costilla County location on the U.S. Map. Where is Costilla County.
Location of Costilla County in the the United States.
Costilla County location on the Colorado map. Where is Costilla County.
Location of Costilla County in Colorado.

History

On July 8, 1694, Spanish Conquistador Don Diego de Vargas and his army, two weeks before the Battle of Astialakwa, reached Costilla County. Diego Vargas is not the first Spaniard in Colorado. Juan de Archuleta led an expedition into Colorado in 1664 – but his expedition is the first traceable Spanish expedition into Colorado. In 1647, Governor Luis Rosas fought with the Utes in northern New Mexico. While Rosa came near Colorado, it has not been verified he actually did.

Costilla County was the first area of Colorado to be settled by European-Americans. The county made up the major part of the Sangre de Cristo Land Grant awarded by the government of New Mexico to the Carlos Beaubien family in 1843. Hispanic settlers from Taos, New Mexico, officially established San Luis on April 9, 1851. Costilla County was one of the original 17 counties created by the Territory of Colorado on November 1, 1861. The county was named for Costilla Creek. San Miguel was originally designated the county seat, but the county government was moved to San Luis in 1863. (In 1869, surveys placed San Miguel in the New Mexico Territory.)

The county’s original boundaries extended over much of south-central Colorado. Much of the northern portion became part of Saguache County in 1866, and the western portions were folded into Hinsdale and Rio Grande counties in 1874. Costilla County arrived at its modern boundaries in 1913 when Alamosa County was created from its northwest portions.

Costilla County Road Map

Costilla CountyStreet Map.
Street map of Costilla County, Colorado. Source: OpenStreetMap (OSM)
Costilla CountyMap
Costilla Countypolitical map.

Geography

According to the U.S. Census Bureau, the county has a total area of 1,230 square miles (3,200 km), of which 1,227 square miles (3,180 km) is land and 304 square miles (790 km) (0.3%) is water.

Adjacent counties

Major Highways

  • U.S. Highway 160
  • State Highway 142
  • State Highway 159

National protected area

  • San Isabel National Forest

Historic trails and sites

  • Fort Garland State History Museum
  • Los Caminos Antiguos Scenic and Historic Byway
  • Old Spanish National Historic Trail

Costilla County Topographic Map

Topographic Map of Costilla County, Colorado
Costilla County Topo map.

Costilla County Satellite Map

Satellite Map of Costilla County, Colorado
Costilla County satellite map.

Costilla County Outline Map

Outline Map of Costilla County, Colorado
Costilla County outline map.
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Parent Unit Map

Map of United States
The United States (US) covers a total area of 9,833,520 sq. km. Of this area, the 48 contiguous states and the District of Columbia cover 8,080,470 sq. km. The archipelago of Hawaii has an area of 28,311 sq. km while the remaining area is part of the US territories. The greatest east-west distance in the ... Read more
Map of United States
Political map of Colorado State – Printable Collection
Colorado (/ˌkɒləˈrædoʊ, -ˈrɑːdoʊ/ (listen), other variants) is a state in the Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains. Colorado is the eighth most extensive and 21st most populous ... Read more
Political map of Colorado State – Printable Collection

Related Administrative Divisions

Sub-Administrative Units Maps