Costilla County is located in southern Colorado. The County Seat is San Luis and the largest city is San Luis. The Official Web Site is located at http://www.costillacounty-co.gov/. The 2014 population estimate is 3,568 and the 2010 census population was 3,524. The land area is 1,226.95 square miles and there are 2.9 persons per square mile.
88.9% of the population is White, 1.8% is Black or African American, 64.6% is Hispanic or Latino, 1.2% is Asian, 5.5% is American Indian or Alaska Native, 0.4% is Native Hawaiian or Pacific Islander, and 2.1% is two or more races. 76.5% have a high school degree or higher, and 19.5% have a Bachelor degree or higher.
The median home value is $93,800, there are 1,361 households, an average of 2.61 persons per household. The per capita income is $20,742, the median household income is $29,145, and 22.2% of the persons in Costilla County are considered below poverty level.
The total number of firms, at last estimate, was 370. Retail sales (in $1000) were $5,702, and sales per capita were $1,726.
Costilla County resources are listed below. Find county government departments, probate indexes, and property tax records.
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| Property | Assessor Costilla County Assessor's Office property search. |
| Property | GIS GIS map property record search for Costilla County. |
| Property | Tax Records Costilla County, Colorado property tax records and assessment valuations. |
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