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Arapahoe County, Colorado

Arapahoe County, Colorado
Arapahoe County Courthouse
Seal of Arapahoe County, Colorado
Seal
Map of Colorado highlighting Arapahoe County
Location in the state of Colorado
Map of the United States highlighting Colorado
Colorado's location in the U.S.
Founded November 1, 1861
Named for The Arapaho Nation[1]
Seat Littleton
Largest city Aurora
Area
 • Total 805 sq mi (2,085 km2)
 • Land 798 sq mi (2,067 km2)
 • Water 7.3 sq mi (19 km2), 0.9%
Population (est.)
 • (2014) 618,821
 • Density 606/sq mi (234/km²)
Congressional districts 1st, 4th, 6th
Time zone Mountain: UTC-7/-6
Website .us.co.arapahoe.cowww
Footnotes:
Third most populous Colorado county

Arapahoe County is one of the 64 counties in the U.S. state of Colorado. As of the 2010 census, the population was 572,003,[2] making it the third-most populous county in Colorado. The county seat is Littleton,[3] and the most populous city is Aurora. The county was named for the Arapaho Native American tribe who once lived in the region.[1]

Arapahoe County is part of the Denver-Aurora-Lakewood, CO Metropolitan Statistical Area. Arapahoe County calls itself "Colorado's First County" since its origins predate the Pike's Peak Gold Rush.

Contents

  • History 1
  • Geography 2
    • Adjacent counties 2.1
    • Major highways 2.2
    • State park 2.3
    • Historic trails 2.4
    • Recreation trails 2.5
  • Demographics 3
  • Communities 4
    • Cities 4.1
    • Towns 4.2
    • Census-designated places 4.3
    • Unincorporated communities 4.4
  • See also 5
  • References 6
  • External links 7

History

On August 25, 1855, the Kansas Territorial Legislature created a huge Arapahoe County to govern the entire western portion of the Territory of Kansas. The county was named for the Arapaho Nation who lived in the region.[1]

In July 1858, gold was discovered along the Arapahoe County. Denver City served as the county seat of Arapahoe County.

The Jefferson Territory never received federal sanction, and instead on February 28, 1861, Kansas border, and from the line of present-day County Line Road 30 miles (48 kilometers) north to the Parallel 40° North (168th Avenue). Denver City served as the county seat of Arapahoe County until 1902.

In 1901, the Governor James Bradley Orman designated Littleton as the temporary county seat of South Arapahoe County. On April 11, 1903, the Colorado General Assembly changed the name of South Arapahoe County back to Arapahoe County. On November 8, 1904, Arapahoe County voters chose Littleton over Englewood by a vote of 1310 to 829 to be the permanent county seat.

Geography

The contemporary Arapahoe County Courthouse in Dove Valley.

According to the U.S. Census Bureau, the county has a total area of 805 square miles (2,080 km2), of which 798 square miles (2,070 km2) is land and 7.3 square miles (19 km2) (0.9%) is water.[5] The county measures 72 miles (116 kilometers) east to west and 4 to 12 miles (6 to 19 kilometers) south to north.

Two exclaves of Arapahoe County are entirely surrounded by the City and County of Denver, the City of Glendale and the Holly Hills neighborhood, a census-designated place.

Adjacent counties

Major highways

State park

Historic trails

Recreation trails

Demographics

As of the census of 2000, there were 487,967 people, 190,909 households, and 125,809 families residing in the county. The population density was 608 people per square mile (235/km²). There were 196,835 housing units at an average density of 245 per square mile (95/km²). The racial makeup of the county was 79.93% White, 7.67% Black or African American, 0.66% Native American, 3.95% Asian, 0.12% Pacific Islander, 4.51% from other races, and 3.16% from two or more races. 11.81% of the population were Hispanic or Latino of any race.

There were 190,909 households out of which 34.90% had children under the age of 18 living with them, 51.20% were married couples living together, 10.60% had a female householder with no husband present, and 34.10% were non-families. 27.00% of all households were made up of individuals and 5.90% had someone living alone who was 65 years of age or older. The average household size was 2.53 and the average family size was 3.11.

In the county the population was spread out with 26.70% under the age of 18, 8.60% from 18 to 24, 33.10% from 25 to 44, 23.00% from 45 to 64, and 8.60% who were 65 years of age or older. The median age was 34 years. For every 100 females there were 97.10 males. For every 100 females age 18 and over, there were 94.20 males.

The median income for a household in the county was $53,570, and the median income for a family was $63,875. Males had a median income of $41,601 versus $31,612 for females. The per capita income for the county was $28,147. About 4.20% of families and 5.80% of the population were below the poverty line, including 7.00% of those under age 18 and 5.10% of those age 65 or over.

Communities

Cities

Towns

Census-designated places

Unincorporated communities

See also

References

  1. ^ a b c Gannett, Henry (1905). The Origin of Certain Place Names in the United States (PDF). p. 27. 
  2. ^ a b "State & County QuickFacts". United States Census Bureau. Retrieved June 7, 2014. 
  3. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  4. ^ "An Act to provide a temporary Government for the Territory of Colorado" ( 
  5. ^ "US Gazetteer files: 2010, 2000, and 1990".  
  6. ^ "Annual Estimates of the Resident Population for Incorporated Places: April 1, 2010 to July 1, 2014". Retrieved June 4, 2015. 
  7. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved June 7, 2014. 
  8. ^ "Historical Census Browser". University of Virginia Library. Retrieved June 7, 2014. 
  9. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved June 7, 2014. 
  10. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved June 7, 2014. 

External links

  • Arapahoe County Government website
  • Colorado County Evolution by Don Stanwyck
  • Colorado Historical Society

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