Adams County, Colorado

Adams County, Colorado

Infobox U.S. County
county = Adams County
state = Colorado

map size = 250
founded date = April 15
founded year = 1901
seat wl = Brighton
largest city wl = Thornton
area_total_sq_mi =1182
area_land_sq_mi =1176
area_water_sq_mi =6
area percentage = 0.48%
census yr = 2000
pop = 363857
density_km2 =118
web =
named for = Alva Adams
footnotes =
Fifth most populous Colorado county


Adams County is the fifth most populous of the 64 counties of the State of Colorado of the United States. The United States Census Bureau estimates that the county population was 414,338 in 2006, a 13.87% increase since U.S. Census 2000.cite web | url = | 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] Adams County is named for Alva Adams, Governor of the State of Colorado 1887-1889, 1897-1899, and 1905.cite book|title=The Origin of Certain Place Names in the United States|year=1905|pages=23|author=Gannett, Henry|url=] The county seat is Brighton. Adams County is part of the Denver-Aurora Metropolitan Statistical Area and the Denver-Aurora-Boulder Combined Statistical Area.


On May 30, 1854, the Kansas-Nebraska Act created the Territory of Nebraska and Territory of Kansas, divided by the Parallel 40° North (168th Avenue in present-day Adams County). The future Adams County, Colorado, occupied a strip of northern Arapahoe County, Kansas Territory, immediately south of the Nebraska Territory.

In 1859, John D. "Colonel Jack" Henderson built a ranch, trading post, and hotel on Henderson Island in the South Platte River in Arapahoe County, Kansas Territory. Jack Henderson was the former editor and proprietor of the Leavenworth (Kansas Territory) Journal and an outspoken pro-slavery politician who had been accused of vote fraud in eastern Kansas. Henderson sold meat and provisions to gold seekers on their way up the South Platte River Trail to the gold fields during the Pike's Peak Gold Rush. Henderson Island was the first permanent settlement in the South Platte River Valley between Fort Saint Vrain in the Nebraska Territory and the Cherry Creek Diggings in the Kansas Territory. Jack Henderson eventually returned to eastern Kansas and (ironically) fought for the Union in the American Civil War. Henderson Island is today the site of the Adams County Regional Park and Fairgrounds.

The eastern portion of the Kansas Territory was admitted to the Union as the State of Kansas on January 29, 1861, and on February 28, 1861, the remaining western portion of the territory was made part of the new Colorado Territory.cite web | date = April 18, 2001 | url = | title = State Government History | format = HTML | publisher = State of Colorado, Department of Personnel & Administration, Colorado State Archives | accessdate = November 28 | accessyear = 2006] The Colorado Territory created Arapahoe County, on November 1, 1861, and Colorado was admitted to the Union on August 1, 1876.

In 1901, the Colorado General Assembly voted to split Arapahoe County into three parts: a new Adams County, a new consolidated City and County of Denver, and the remainder of the Arapahoe County to be renamed South Arapahoe County. A ruling by the Colorado Supreme Court, subsequent legislation, and a referendum delayed the creation of Adams County until November 15, 1902. Governor James Bradley Orman designated Brighton as the temporary Adams County Seat. Adams County originally stretched 160 miles (258 kilometers) from present-day Sheridan Boulevard to the Kansas state border. On May 12, 1903, the eastern 88 miles (142 kilometers) of Adams County was transferred to the new Washington County and the new Yuma County, reducing the length of Adams County to the present 72 miles (116 kilometers). On November 8, 1904, Adams County voters chose Brighton as the permanent county seat.

A 1989 vote transferred 53 square miles (137 square kilometers) of Adams County to the City and County of Denver for the proposed Denver International Airport, leaving the densely populated western portion of the county as two oddly-shaped peninsulas. Adams County lost the tip of its northwest corner when the consolidated City and County of Broomfield was created on November 15, 2001.


According to the U.S. Census Bureau, the county has a total area of 1,198 square miles (3,102 km²), of which, 1,192 square miles (3,087 km²) of it is land and 6 square miles (15 km²) of it (0.48%) is water.

Adams County surrounds (and surrendered the land for) most of Denver International Airport which is in the City and County of Denver, Colorado.

Adjacent counties

*Weld County, Colorado - north
*Morgan County, Colorado - northeast
*Washington County, Colorado - east
*Arapahoe County, Colorado - south
*City and County of Denver, Colorado - south
*Jefferson County, Colorado - west
*City and County of Broomfield, Colorado - northwest


As of the censusGR|2 of 2000, there were 363,857 people, 128,156 households, and 92,144 families residing in the county. The population density was 305 people per square mile (118/km²). There were 132,594 housing units at an average density of 111 per square mile (43/km²). The racial makeup of the county was 77.29% White, 2.97% Black or African American, 1.19% Native American, 3.21% Asian, 0.12% Pacific Islander, 11.73% from other races, and 3.49% from two or more races. 28.19% of the population were Hispanic or Latino of any race.

There were 128,156 households out of which 37.80% had children under the age of 18 living with them, 53.80% were married couples living together, 12.10% had a female householder with no husband present, and 28.10% were non-families. 21.20% of all households were made up of individuals and 5.50% had someone living alone who was 65 years of age or older. The average household size was 2.81 and the average family size was 3.27.

In the county the population was spread out with 28.60% under the age of 18, 10.30% from 18 to 24, 34.00% from 25 to 44, 19.40% from 45 to 64, and 7.80% who were 65 years of age or older. The median age was 31 years. For every 100 females there were 102.80 males. For every 100 females age 18 and over, there were 102.10 males.

The median income for a household in the county was $47,323, and the median income for a family was $52,517. Males had a median income of $36,499 versus $28,053 for females. The per capita income for the county was $19,944. About 6.50% of families and 8.90% of the population were below the poverty line, including 10.90% of those under age 18 and 7.30% of those age 65 or over.

Cities and town

Seven cities and one town (Bennett) have been established in the county. Portions of most of these municipalities lie in adjacent counties as well:
*Arvada (partially)
*Aurora (partially)
*Bennett (partially)
*Brighton (partially)
*Commerce City
*Federal Heights
*Northglenn (partially)
*Thornton (partially)
*Westminster (partially)

Unincorporated communities

*Henderson (portions have been annexed by Brighton, Commerce City and Thornton)

Census-designated places

*North Washington
*Todd Creek
*Twin Lakes

Community development organizations

National wildlife refuge

*Rocky Mountain Arsenal National Wildlife Refuge

tate park

*Barr Lake State Park

Historic trail

*South Platte Trail

Recreational trails

*American Discovery Trail
*Big Dry Creek National Recreation Trail
*Highline Canal National Recreation Trail
*Platte River Greenway National Recreation Trail
*Rocky Mountain Arsenal National Recreation Trail

License plate code

Adams County has used the following county codes on Colorado license plates issued to passenger vehicles in the county: TE-UF, GA-GG, SAA-SEW, and SEY-TZZ. []

ee also

*Arapahoe County, Kansas Territory
*Arrappahoe County, Jefferson Territory
*Arapahoe County, Colorado Territory
*Colorado census statistical areas
*Colorado counties
*Colorado metropolitan areas
*Colorado municipalities
*Denver-Aurora Metropolitan Statistical Area
*Denver-Aurora-Boulder Combined Statistical Area
*Front Range Urban Corridor


External links

* [ Adams County Government website]
** [ History of Adams County, Colorado]
* [ Biography of John D. Henderson]
* [ Colorado County Evolution by Don Stanwyck]
* [ Colorado Historical Society]

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См. также в других словарях:

  • Adams County (Colorado) — Adams County Courthouse in Brighton, gelistet im NRHP Nr. 06000916[1] Verwaltung US Bundess …   Deutsch Wikipedia

  • Adams County Colorado Education Consortium — Adams County Education Consortium is a non profit educational initiative established in Adams County, Colorado to make the education curriculum more relevant, and to increase rates of completion among students. Offices are located in Westminster …   Wikipedia

  • National Register of Historic Places listings in Adams County, Colorado — Location of Adams County in Colorado This is a list of the National Register of Historic Places listings in Adams County, Colorado. This is intended to be a complete list of the properties and districts on the National Register of Historic Places …   Wikipedia

  • Twin Lakes, Adams County, Colorado — Infobox Settlement official name = Twin Lakes CDP, Colorado other name = native name = nickname = settlement type = CDP motto = imagesize = image caption = flag size = image seal size = image shield = shield size = image blank emblem = blank… …   Wikipedia

  • Adams City, Colorado — Infobox Settlement official name = Adams City, Colorado other name = native name = nickname = settlement type = Town motto = imagesize = image caption = flag size = image seal size = image shield = shield size = image blank emblem = blank emblem… …   Wikipedia

  • Adams County — ist der Name zahlreicher Countys in den USA. Die meisten sind nach John Adams, dem zweiten Präsidenten der Vereinigten Staaten, oder nach seinem Sohn, John Quincy Adams, dem sechsten Präsidenten, benannt. nach John Adams: Adams County (Idaho)… …   Deutsch Wikipedia

  • Adams County — is the name of twelve counties in the United States: Adams County, Colorado Adams County, Idaho Adams County, Illinois Adams County, Indiana Adams County, Iowa Adams County, Mississippi Adams County, Nebraska Adams County, North Dakota Adams… …   Wikipedia

  • Adams County (метеорит) — Adams County Находка или падение Находка Место Колорадо …   Википедия

  • Adams County School District 50 — Infobox Education in the United States name = Adams County School District 50 imagesize = motto = The District of Choice motto translation = streetaddress = 4476 West 68th Avenue city = Westminster state = Colorado zipcode = 80030 coordinates =… …   Wikipedia

  • Adams County Courthouse — ist die Bezeichnung mehrerer Courthouses in den Vereinigten Staaten: Adams County Courthouse (Colorado), NRHP Nr. 06000916 Adams County Courthouse (Idaho), NRHP Nr. 87001599 Adams County Courthouse (Illinois) Adams County Courthouse (Indiana),… …   Deutsch Wikipedia

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