Costilla County, Colorado
Costilla County profile, demographic data, and geographic information.
Local Government & Public Administration
Authoritative general-purpose local government units serving this area
U.S. Census Bureau GUS (2026) / GMAF
| Government Unit | Unit Type | Jurisdiction Role | Contact / Address |
|---|---|---|---|
|
COUNTY OF COSTILLA
GUS Population: 3,686 (2024)
ID: 123708
|
County | Official County Government |
Contact: COMMISIONERS
PO BOX 100, SAN LUIS CO 81152-0100
|
|
TOWN OF SAN LUIS
GUS Population: 628 (2024)
ID: 161347
|
Municipal | Municipal Government Within County |
Contact: MAYOR
PO BOX 200, SAN LUIS CO 81152-0200
|
|
GUS Population: 342 (2024)
ID: 161346
|
Municipal | Municipal Government Within County |
Contact: TOWN CLERK
PO BOX 190, BLANCA CO 81123-0190
|