- Arapahoe County, Colorado
Infobox U.S. County
county = Arapahoe County
state = Colorado
map size = 250
founded date = November 1
founded year = 1861
seat wl = Littleton
largest city wl = Aurora
area percentage = 0.28%
census yr = 2000
pop = 487967
web = www.co.arapahoe.co.us
Third most populous Colorado county
named for = The
Arapahoe County is the third most populous of the 64 counties of the
State of Coloradoof the United States. The United States Census Bureauestimates that the county population was 537,197 in 2006, a 10.09% increase since U.S. Census 2000.cite web | url = http://www.census.gov/popest/counties/files/CO-EST2006-ALLDATA.csv | title = Annual County Population Estimates and Estimated Components of Change: April 1, 2000 to July 1, 2006 (CO-EST2006-alldata) | format = CSV | work = 2006 Population Estimates | publisher = United States Census Bureau, Population Division | date = 2007-03-22| accessdate = 2007-05-08] The county seatis Littleton and the most populous city is Aurora. Arapahoe County is part of the Denver-Aurora Metropolitan Statistical Areaand the Denver-Aurora-Boulder Combined Statistical Area. Arapahoe County calls itself "Colorado's First County" since its origins predate the Pike's Peak Gold Rush.
1855-08-25, 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 Nationof Native Americanscite book|title=The Origin of Certain Place Names in the United States|year=1905|pages=27|author=Gannett, Henry|url=http://books.google.com/books/pdf/The_Origin_of_Certain_Place_Names_in_the.pdf?id=BqwPAAAAIAAJ&output=pdf&sig=3IVIg6u-evPGlrv4j1uDL7rQ09c] that lived in the region.
In July 1858, gold was discovered along the
South Platte Riverin Arapahoe County (in present day Englewood). This discovery precipitated the Pike's Peak Gold Rush. Many residents of the mining region felt disconnected from the remote territorial governments of Kansas and Nebraska, so they voted to form their own Territory of Jeffersonon 1859-10-24. The following month, the Jefferson Territorial Legislature organized 12 counties for the new territory, including a new Arrappahoe County. Denver City served as the county seatof Arrappahoe County.
The Jefferson Territory never received federal sanction, but on
1861-02-28, U.S. President James Buchanansigned an act organizing the Territory of Colorado.cite web|url=http://www.colorado.gov/dpa/doit/archives/territory.pdf|title=An Act to provide a temporary Government for the Territory of Colorado|format= Thirty-sixth United States Congress|date= 02-28-1861|accessdate=2007-11-26] On 1861-11-01, the Colorado General Assemblyorganized the 17 original counties of Colorado including a new Arapahoe County. Arapahoe County originally stretched from the line of present-day Sheridan Boulevard 160 miles (258 kilometers) east to the Kansasstate 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 seatof Arapahoe County until 1902.
In 1901, the
Colorado General Assemblyvoted to split Arapahoe County into three parts: a new consolidated City and County of Denver, a new Adams County, and the remainder of the Arapahoe County to be renamed South Arapahoe County. A ruling by the Colorado Supreme Court, subsequent legislation, and a referendumdelayed the reorganization until 1902-11-15. Governor James Bradley Ormandesignated Littleton as the temporary county seatof South Arapahoe County. On 1903-04-11, the Colorado General Assemblychanged the name of South Arapahoe County back to Arapahoe County. On 1904-11-08, Arapahoe County voters chose Littleton over Englewood by a vote of 1310 to 829 to be the permanent county seat.
According to the
U.S. Census Bureau, the county has a total area of 805 square miles (2,086 km²), of which, 803 square miles (2,080 km²) of it is land and 2 square miles (6 km²) of it (0.28%) is water. The county measures 72 miles (116 kilometers) east to west and 4 to 12 miles (6 to 19 kilometers) south to north.
*City and County of Denver - northwest and exclaves
Adams County, Colorado- north
Washington County, Colorado- east
Lincoln County, Colorado- southeast
Elbert County, Colorado- south
Douglas County, Colorado- southwest
Jefferson County, Colorado- west
As of the
censusGR|2 of 2000, there were 487,967 people, 190,909 households, and 125,809 families residing in the county. The population densitywas 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 incomefor 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.
Cities and towns
*Centennial "(created mostly from Southglenn and Castlewood CDPs)"
*Cherry Hills Village
Cherry Creek State Park
Smoky Hill Trail
South Platte Trail
Highline Canal National Recreation Trail
Platte River Greenway National Recreation Trail
Arapahoe County, Kansas Territory
Arrappahoe County, Jefferson Territory
Arapahoe County, Colorado Territory
South Arapahoe County, Colorado
Colorado census statistical areas
Colorado metropolitan areas
Denver-Aurora Metropolitan Statistical Area
Denver-Aurora-Boulder Combined Statistical Area
Front Range Urban Corridor
* [http://www.co.arapahoe.co.us/ Arapahoe County Government website]
* [http://www.stanwyck.com/cogenweb/cocounties.html Colorado County Evolution by Don Stanwyck]
* [http://www.coloradohistory.org/ Colorado Historical Society]
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