Costilla County, county in Colorado, United States. As of 2020 county had an estimated population of 3,921 inhabitants. The county was created 162 years ago in 1861. Its county seat is San Luis.
There are 1 city/town in Costilla County, CO. The largest city of Costilla County is Blanca with a population of 407.
Blanca, Human settlement in Costilla County, Colorado, United States of America
List of cities, towns, neighborhoods & other populated places in Costilla County.
City Name | Title | Population |
---|---|---|
Blanca | Human settlement in Costilla County, Colorado, United States of America | 407 |