In 2020, Costilla County, CO had a population of 3.81k people with a median age of 49.6 and a median household income of $34,732. Between 2019 and 2020 the population of Costilla County, CO grew from 3,745 to 3,810, a 1.74% increase and its median household income grew from $30,965 to $34,732, a 12.2% increase.
The 5 largest ethnic groups in Costilla County, CO are White (Hispanic) (43.1%), White (Non-Hispanic) (33.6%), Two+ (Hispanic) (12%), Other (Hispanic) (4.28%), and Two+ (Non-Hispanic) (3.44%).
None of the households in Costilla County, CO reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
96.1% of the residents in Costilla County, CO are U.S. citizens.
In 2020, the median property value in Costilla County, CO was $123,600, and the homeownership rate was 73.6%. Most people in Costilla County, CO drove alone to work, and the average commute time was 23.9 minutes. The average car ownership in Costilla County, CO was 2 cars per household.