County · Colorado · United States
Costilla County ZIP codes
5 ZIP codes · 5 cities · FIPS 08023
Key facts
- State
- Colorado (CO)
- FIPS code
- 08023
- Population
- 3,571
- Median household income
- $36,519
- Median age
- 50.7
- Land area
- 1,227.6 sq mi (3,179.5 km²)
- Population density
- 3 / sq mi
- Area codes
- 719
Cities and ZIP codes in Costilla County (5)
About this page
County figures are Census county-level values (ACS 5-year); the ZIP list shows the ZIPs whose primary county this is — a ZIP on a border can also serve neighbouring counties.
Sources: U.S. Census Bureau (2020 county relationship file, ACS 5-year) · GeoNames. Methodology.