| County : | Costilla County |
| State : | Colorado (CO) |
| Land Area : | 1,226.94 sq mi |
| Water Area : | 3.41 sq mi |
| Latitude : | 37.2775474 |
| Longitude : | -105.4289399 |
| Population (2010): | 3,524 |
| Population Estimate (2012) : | 3,556 |
| Population Density : | 2.87/sq mi |
| Housing Units (2012) : | 2,613 |
| Median Household Income (2012) : | $25,309 (Colorado : $58,244, USA : $53,046) |
| Median Family Income (2012) : | $40,291 (Colorado : $72,455, USA : $64,585) |
| Median House Price (2012) : | $90,400 (Colorado : $236,800, USA : $181,400) |
Costilla County Cities / Towns
| Blanca Town (385) | Fort Garland (433) | San Acacio (40) |
| San Luis Town (629) |
Costilla County Zip Codes
| 81123 (805) | 81126 (276) | 81133 (840) |
| 81138 (56) | 81151 (1,470) | 81152 (1,434) |