Jefferson County, Colorado

from Wikipedia, the free encyclopedia
Jefferson County Courthouse
Jefferson County Courthouse
administration
US state : Colorado
Administrative headquarters : Golden
Foundation : November 1, 1861
Made up from: Lake County
Demographics
Residents : 534,543  (2010)
Population density : 267.3 inhabitants / km 2
geography
Total area : 2015 km²
Water surface : 15 km²
map
Map of Jefferson County within Colorado
Website : www.co.jefferson.co.us

Jefferson County is a county in the state of Colorado in the United States . The county seat is Golden . The county is named after US President Thomas Jefferson .

The Columbine High School , the location of the school massacre in Littleton , located in Jefferson County.

Demographic data

growth of population
Census Residents ± in%
1870 2390 -
1880 6804 184.7%
1890 8450 24.2%
1900 9306 10.1%
1910 14,231 52.9%
1920 14,400 1.2%
1930 21,810 51.5%
1940 30,725 40.9%
1950 55,687 81.2%
1960 127,520 129%
1970 233.031 82.7%
1980 371.753 59.5%
1990 438.430 17.9%
2000 527.056 20.2%
2010 534,543 1.4%
Before 1900

1900–1990 2000 2010

Jefferson County's age pyramid (as of 2000)
The Bear Creek Reservoir on Mount Morrison
The Chatfield Lake

The county had a population of 527,056 people as of the 2000 census . There were 206,067 households and 140,537 families. The population density was 264 inhabitants per square kilometer. The racial the population was composed of 90.59 percent white, 0.89 percent African American, 0.75 percent Native American, 2.28 percent Asian, 0.08 percent of residents from the Pacific island area and 3.23 percent from other ethnic groups Groups; 2.18 percent were descended from two or more races. 9.95 percent of the total population were Hispanic or Latino of any race.

Of the 206,067 households, 33.4 percent had children and adolescents under the age of 18 living with them. 55.1 percent were married couples living together, 9.1 percent were single mothers. 31.8 percent were not families. 24.5 percent were single households and 6.3 percent had people aged 65 or over. The average household size was 2.52 and the average family size was 3.03.

For the entire county, the population was composed of 25.3 percent of residents under 18 years of age, 8.1 percent between 18 and 24 years of age, 32.1 percent between 25 and 44 years of age, 24.9 percent between 45 and 64 years of age 9.6 percent were 65 years of age or over. The median age was 37 years. For every 100 females there were 99.0 males, and for every 100 females aged 18 and over there were 96.8 males.

The median income for a household in the county is $ 57,339 , and the median income for a family is $ 67,310. Males had a median income of $ 45,306 versus $ 32,372 for females. The per capita income was $ 28,066. 5.2 percent of the population and 3.4 percent of families are below the poverty line. These included 5.8 percent of the population under the age of 18 and 5.1 percent of the population aged 65 and over.

Places in Jefferson County

Individual evidence

  1. ↑ GNIS-ID: 198145. Retrieved on February 22, 2011 (English).
  2. ↑ US Census Bureau - Census of Population and Housing . Retrieved March 15, 2011
  3. ↑ Extract from Census.gov . Retrieved February 28, 2011
  4. ↑ Excerpt from factfinder.census.gov.Retrieved February 28, 2011
  5. ↑ Excerpt from census.gov ( memento of the original from July 12, 2011 on WebCite ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved March 31, 2012 @1@ 2Template: Webachiv / IABot / quickfacts.census.gov

Web links

Commons : Jefferson County, Colorado  - Collection of pictures, videos, and audio files

Coordinates: 39 ° 35 ′  N , 105 ° 15 ′  W