Columbine is a census-designated place (CDP) in Arapahoe and Jefferson Counties in the U.S. state of Colorado. Located mostly in Jefferson County, it lies immediately west of Littleton.
The population was 24,280 at the 2010 census. Columbine High School, made infamous by the Columbine High School massacre, is located in the Columbine CDP. The ZIP codes for the community are 80123 and 80128.
Columbine is located at 39°35′16″N 105°04′10″W (39.587887, -105.069332).
According to the United States Census Bureau, the CDP has a total area of 6.6 square miles (17 km2), of which, 6.5 square miles (17 km2) of it is land and 0.1 square miles (0.26 km2) of it (1.97%) is water.
As of the census of 2000, there were 24,095 people, 8,656 households, and 6,933 families residing in the CDP. The population density was 3,629.6 people per square mile (1,401.1/km²). There were 8,800 housing units at an average density of 1,325.6 per square mile (511.7/km²). The racial makeup of the CDP was 94.82% White, 0.47% African American, 0.40% Native American, 1.16% Asian, 0.12% Pacific Islander, 1.57% from other races, and 1.46% from two or more races. Hispanic or Latino of any race were 5.58% of the population.
There were 8,656 households out of which 38.1% had children under the age of 18 living with them, 69.7% were married couples living together, 7.3% had a female householder with no husband present, and 19.9% were non-families. 15.8% of all households were made up of individuals and 3.9% had someone living alone who was 65 years of age or older. The average household size was 2.77 and the average family size was 3.11.
In the CDP, the population was spread out with 27.0% under the age of 18, 6.5% from 18 to 24, 28.0% from 25 to 44, 29.3% from 45 to 64, and 9.2% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 99.6 males. For every 100 females age 18 and over, there were 96.3 males.
The median income for a household in the CDP was $71,319, and the median income for a family was $77,866 (these figures had risen to $78,203 and $88,515 respectively as of a 2007 estimate. Males had a median income of $51,300 versus $35,713 for females. The per capita income for the CDP was $28,471. About 1.6% of families and 2.0% of the population were below the poverty line, including 2.7% of those under age 18 and 2.2% of those age 65 or over.