Costilla County, Colorado
As of the census of 2000, there were 3663 residents, 1503 households, and 1030 families in the county. The population density was 3 people per square mile (1.16/kmē), making its Colorado's 14th least densely populated county. There were 2202 housing units at an average density of 1.8 per square mile (0.69/kmē). The average household size was 2.44 persons, and the average family size was 2.98 persons. In the county the population is diverse age-wise, with 25% under the age of 18, 6.6% from 18 to 24, 23.3% from 25 to 44, 28.3% from 45 to 64, and 16.8% who were 65 or older. For every 100 females there were 99.8 males. For every 100 females age 18 and over, there were 96.2 males. The county's estimated population as of July 2008 was 3232, The racial makeup of the county was 2953 White, 34 Black or African American, 123 American Indian, 29 Asian, 14 Native Hawaiian, and 79 from two or more races.
The median income for a household in the county was $19531, making its Colorado's lowest county by median household income. The median income for a family in the county was $25509, it is the poorest county in terms of median family income. The per capita income for the county was $10748, it is Colorado's poorest county by per capita income.
In 2000, 908 pupils and students, of which 49.56% are male and 50.44% are female, 24.79% of the total population, are in the education system. Of which, percentage of enrollment student are in, 8.26% nursery or pri school, 4.96% kindergarten, 49.01% elementary school, 26.76% high school and 11.01% College graduate school.
| Rank | City | County | Total Area mi2 | Land Area mi2 | Water Area mi2 | Population | Density mi2 | Per capita Income | House hold Income |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Blanca Town | Costilla County | 1.78 | 1.78 | 0 | 391 | 219.6 | 10200 | 22875 |
| 2 | Fort Garland Cdp | Costilla County | 0.29 | 0.29 | 0 | 432 | 1514.5 | 9470 | 18929 |
| 3 | San Luis Town | Costilla County | 0.48 | 0.48 | 0 | 739 | 1555.2 | 8887 | 14213 |
| Year | Population |
|---|---|
| April 2000 census | 3663 |
| April 2000 Estimate | 3663 |
| July 2000 Estimate | 3668 |
| July 2001 Estimate | 3575 |
| July 2002 Estimate | 3557 |
| July 2003 Estimate | 3519 |
| July 2004 Estimate | 3490 |
| July 2005 Estimate | 3361 |
| July 2006 Estimate | 3341 |
| July 2007 Estimate | 3292 |
| July 2008 Estimate | 3232 |
| School | Male | Female | Total |
|---|---|---|---|
| Nursery school | 48 | 27 | 75 |
| Kindergarten | 18 | 27 | 45 |
| Elementary school | 224 | 221 | 445 |
| High school | 123 | 120 | 243 |
| College or graduate school | 37 | 63 | 100 |
| Place | Median household income | Median family income | Per capita income |
|---|---|---|---|
| Costilla County, Colorado | $19531 | $25509 | $10748 |
| Colorado, United States | $47203 | $55883 | $24049 |
| United States | $41994 | $50046 | $21587 |