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Adams County, Colorado

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Adams County, Colorado
Map of Colorado highlighting Adams County
Location in the state of Colorado
Map of USA CO
Colorado's location in the U.S.
Founded April 15, 1901
Named for Alva Adams[1]
Seat Brighton
Largest city Thornton
Area
 - Total
 - Land
 - Water

1,197.71 sq mi (3,102 km²)
1,191.93 sq mi (3,087 km²)
5.78 sq mi (15 km²), 0.48%
Population
 - (2010)
 - Density

441,603
370.5/sq mi (143/km²)
Website www.co.adams.co.us
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 441,603 in 2010 census, a 21.4% increase since 2000 census.[2] Adams County is named for Alva Adams, Governor of the State of Colorado 1887-1889, 1897-1899, and 1905.[1] The county seat is Brighton. Adams County is part of the Denver-Aurora-Broomfield, CO Metropolitan Statistical Area and the Denver-Aurora-Boulder Combined Statistical Area.

HistoryEdit

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.[3] The Colorado Territory created Arapahoe County, on November 1, 1861, and Colorado was admitted to the Union on August 1, 1876.[3]

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.

GeographyEdit

According to the 2000 census, the county has a total area of 1,197.71 square miles (3,102.1 km2), of which 1,191.93 square miles (3,087.1 km2) (or 99.52%) is land and 5.78 square miles (15.0 km2) (or 0.48%) is water.[4]

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

Adjacent countiesEdit

DemographicsEdit

Historical populations
Census Pop.
1910 8,892
1920 14,430 62.3%
1930 20,245 40.3%
1940 22,481 11.0%
1950 40,234 79.0%
1960 120,296 199.0%
1970 185,789 54.4%
1980 245,944 32.4%
1990 265,038 7.8%
2000 363,857 37.3%
2010 441,603 21.4%
U.S. Decennial Census

As of the census[5] 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.

In 2000, the largest denominational groups were Catholics (with 60,429 members) and Evangelical Protestants (with 25,552 members).[6] The largest religious bodies were The Catholic Church (with 60,429 adherents)and The Church of Jesus Christ of Latter-day Saints (with 6,808 adherents).[6]

Cities and townEdit

Seven cities and one town (Bennett) have been established in the county. Portions of most of these municipalities lie in adjacent counties as well:

Unincorporated communitiesEdit

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

Census-designated placesEdit

EducationEdit

The school districts serving Adams County are[7]:

Community development organizationsEdit

National wildlife refugeEdit

State parkEdit

Historic trailEdit

Recreational trailsEdit

License plate codeEdit

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. [1]

See alsoEdit

ReferencesEdit

External linksEdit

Coordinates: 39°52′N 104°21′W / 39.87, -104.35



This page uses content from the English language Wikipedia. The original content was at Adams County, Colorado. The list of authors can be seen in the page history. As with this Familypedia wiki, the content of Wikipedia is available under the Creative Commons License.

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