County
· Colorado
Costilla County
Costilla County 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.
3,625 population
(2021)
·
County area: Costilla
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Cities and towns 2
Reference data (Census of Governments 2022)
- Census ID (PID6)
- 123708
- FIPS state
- 08
- FIPS county
- 023
- FIPS place
- 99023
- Census record name
- COUNTY OF COSTILLA
- Mailing address
- PO BOX 100, SAN LUIS 81152