Cities in Costilla County, Colorado by Population (2024)

There are 6 cities in Costilla County, Colorado.

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

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City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Sanford1Colorado9138810.88%6251.46
La Veta2Colorado9048581.34%6611.37
San Luis3Colorado6356011.44%1,1200.57
Fort Garland4Colorado568607-1.22%1,5110.38
Blanca5Colorado3413231.49%1861.83
San Acacio6Colorado45135-11.77%361.26

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in Costilla County, Colorado?

Sanford is the largest city in Costilla County.

What is the smallest city in Costilla County, Colorado?

San Acacio is the smallest city in Costilla County.

How many cities are in Costilla County?

There are 6 cities in Costilla County, Colorado.

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