Jefferson County, Colorado

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Jefferson County
JeffersonCountyCO Courthouse 01Oct2017.jpg
Jefferson County Courthouse in Golden
Motto(s): 
Gateway to the Rocky Mountains
Map of Colorado highlighting Jefferson County.svg
Location within the U.S. state of Colorado
Colorado in United States.svg
Colorado's location within the U.S.
Coordinates: 39°35′N105°15′W / 39.59°N 105.25°W / 39.59; -105.25
CountryFlag of the United States.svg United States
StateFlag of Colorado.svg  Colorado
FoundedNovember 1, 1861
Named for Thomas Jefferson
Seat Golden
Largest city Lakewood
Area
  Total774 sq mi (2,000 km2)
  Land764 sq mi (1,980 km2)
  Water9.8 sq mi (25 km2)  1.3%%
Population
  Estimate 
(2019)
582,881
  Density752/sq mi (290/km2)
Time zone UTC−7 (Mountain)
  Summer (DST) UTC−6 (MDT)
Congressional districts 1st, 2nd, 7th
Website www.jeffco.us

Jefferson County, is a county located in the U.S. state of Colorado. As of the 2010 census, the population was 534,543, [1] making it the fourth-most populous county in Colorado. The county seat is Golden, [2] and the most populous city is Lakewood.

Contents

Jefferson County is included in the Denver-Aurora-Lakewood, CO Metropolitan Statistical Area. Located along the Front Range of the Rocky Mountains, Jefferson County is adjacent to the state capital of Denver.

In 2010, the center of population of Colorado was located in Jefferson County. [3]

The county's slogan is the "Gateway to the Rocky Mountains", and it is commonly nicknamed Jeffco. The name Jeffco is incorporated in the name of the Jeffco School District, the Jeffco Business Center Metropolitan District No. 1, and several businesses located in Jefferson County. Jeffco is also incorporated in the unofficial monikers of many Jefferson County agencies. The Rocky Mountain Metropolitan Airport operated by Jefferson County was previously known as the Jeffco Airport.

A major employer in Jefferson County is the large Coors Brewing Company in Golden. Also, the state-supported Colorado School of Mines is located in Jefferson County, focusing on topics such as mining, geology, chemistry, and engineering.

History

On August 25, 1855, the Kansas Territorial Legislature created Arapahoe County to govern the entire western portion of the territory. The county was named for the Arapaho Nation of Native Americans that lived in the region.

On June 22, 1858, gold was discovered along the South Platte River in 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 Jefferson on October 24, 1859. The following month, the Jefferson Territorial Legislature organized 12 counties for the new territory, including Jefferson County. Jefferson County was named for the namesake of the Jefferson Territory, Thomas Jefferson, the principal author of the Declaration of Independence and the nation's third president. [4] Golden City served as the county seat of Jefferson County. Robert Williamson Steele, Governor of the Provisional Government of the Territory of Jefferson from 1859 to 1861, built his home in the county at Mount Vernon and later at Apex.

The Jefferson Territory never received federal sanction, but during his last week in office, President James Buchanan signed an act which organized the Territory of Colorado on February 28, 1861. [5] That November 1, the new Colorado General Assembly organized the 17 original counties of Colorado, including a new Jefferson County. In 1908, the southern tip of Jefferson County was transferred to Park County, reducing Jefferson County to its present length of 54 miles (87 km). Several annexations by the City & County of Denver and the 2001 consolidation of the City & County of Broomfield removed the east and extreme northwestern portion of the county, respectively.

Geography

Long Scraggy Peak in the southeastern part of the county. Long Scraggy Peak.JPG
Long Scraggy Peak in the southeastern part of the county.

According to the U.S. Census Bureau, the county has a total area of 774 square miles (2,000 km2), of which 764 square miles (1,980 km2) is land and 9.8 square miles (25 km2) (1.3%) is water. [6]

Adjacent counties

Jefferson County is one of the few counties in the United States to border as many as ten counties.

Major highways

Recreational areas

  • Alderfer/Three Sisters Park
  • Apex Park
  • Bear Creek Lake Park
  • Centennial Cone Park
  • Clear Creek Canyon Park
  • Coal Creek Canyon
  • Crown Hill Park
  • Deer Creek Canyon Park
  • Elk Meadow Park
  • Evergreen Lake
  • Fairmount Trail
  • Flying J Ranch Park
  • Hildebrand Ranch Park
  • Hiwan Homestead Museum
  • Lair o' the Bear Park
  • Lewis Meadows Park
  • Lookout Mountain Nature Center
  • Matthews/Winters Park
  • Meyer Ranch Park
  • Mount Falcon Park
  • Mount Galbraith Park
  • Mount Glennon
  • Mount Lindo
  • North Table Mountain Park
  • Pine Valley Ranch Park
  • Ranson/Edwards Homestead Ranch
  • Reynolds Park
  • Sister City Park
  • South Table Mountain Park
  • South Valley Park
  • Standley Lake Regional Park
  • Van Bibber Park
  • Welchester Tree Grant Park
  • White Ranch Park
  • Windy Saddle Park
  • Urban Trails

Demographics

Historical population
CensusPop.
1870 2,390
1880 6,804184.7%
1890 8,45024.2%
1900 9,30610.1%
1910 14,23152.9%
1920 14,4001.2%
1930 21,81051.5%
1940 30,72540.9%
1950 55,68781.2%
1960 127,520129.0%
1970 233,03182.7%
1980 371,75359.5%
1990 438,43017.9%
2000 527,05620.2%
2010 534,5431.4%
2019 (est.)582,881 [7] 9.0%
U.S. Decennial Census [8]

1790-1960 [9] 1900-1990 [10]

1990-2000 [11] 2010-2015 [1]

As of the census [12] of 2000, there were 527,056 people, 206,067 households, and 140,537 families residing in the county. The population density was 683 people per square mile (264 people/km²). There were 212,488 housing units at an average density of 275 people per square mile (106 people/km²). The racial makeup of the county was

90.59% White
0.89% Black or African American
0.75% Native American
2.28% Asian
0.08% Pacific Islander
3.23%from other races
9.95% of the population were either Hispanic or Latino of any race
2.18% in two or more races

There were 206,067 households, out of which 33.40% had children under age 18 living with them, 55.10% were married couples living together, 9.10% had a female householder with no husband present, and 31.80% were non-families. 24.50% of all households were made up of individuals, of those 6.30% were someone living alone who was 65 years of age or older. The average household size was 2.52, and the average family size was 3.03 persons.

In the county, the population ages were spread out:

25.30%under age 18
8.10%aged 18–24
32.10%from 25–44
24.90%from 45–64
9.60%65 years of age or older
The median age was 37 years.

For every 100 females there were 99.00 males. For every 100 females age 18 and over, there were 96.80 males.

The median income for a household in the county was $57,339, and the median income for a family was $67,310. Males had a median income of $45,306 versus $32,372 for females. The per capita income for the county was $28,066. About 3.40% of families and 5.20% of the population were below the poverty line, including 5.80% of those under age 18, and 5.10% of those age 65 or over.

According to a report in the JAMA, residents of Jefferson County had a 2014 life expectancy of 80.02 years. [13]

Education

Government and infrastructure

Jefferson County was once a Republican stronghold, but starting with the 2008 election it has consistently voted Democratic.

Presidential elections results
Jefferson County vote
by party in presidential elections
[15]
Year Republican Democratic Others
2020 39.3% 148,41757.9%218,3962.8% 10,545
2016 42.0% 138,17748.9%160,7769.1% 29,930
2012 46.4% 144,19751.2%159,2962.4% 7,559
2008 44.6% 131,62853.6%158,1581.8% 5,282
2004 51.8%140,64446.6% 126,5581.6% 4,366
2000 51.0%120,13842.9% 100,9706.1% 14,383
1996 48.4%101,51742.7% 89,4948.9% 18,712
1992 37.1%82,70536.2% 80,83426.7% 59,664
1988 56.4%110,82041.6% 81,8242.0% 3,867
1984 68.9%124,49629.7% 53,7001.4% 2,432
1980 59.7%97,00825.5% 41,52514.8% 24,078
1976 60.4%87,08036.6% 52,7822.9% 4,211
1972 69.9%80,08227.5% 31,5552.6% 2,960
1968 56.9%50,84735.1% 31,3928.0% 7,118
1964 43.5% 33,39856.2%43,1620.3% 252
1960 59.6%34,10540.1% 22,9620.2% 137
1956 63.7%25,39835.8% 14,2700.5% 197
1952 63.1%19,97136.3% 11,5090.6% 194
1948 51.3%9,90347.4% 9,1451.4% 260
1944 57.2%9,81542.4% 7,2770.4% 68
1940 52.8%8,78046.6% 7,7450.6% 100
1936 41.1% 5,27156.8%7,2832.1% 271
1932 45.8% 5,52250.0%6,0234.2% 503
1928 69.1%6,75429.5% 2,8801.4% 141
1924 63.7%4,86916.6% 1,27119.7% 1,505
1920 61.5%3,59333.2% 1,9415.2% 306
1916 36.6% 2,04060.4%3,3683.0% 166
1912 18.9% 1,01143.1%2,30938.0% 2,037
1908 48.5%2,62347.8% 2,5833.5% 193
1904 60.7%2,90336.4% 1,7392.8% 136
1900 44.7% 1,80753.0%2,1382.2% 89
1896 8.4% 30088.9%3,1762.6% 93
1892 42.8% 79257.1%1,056
1888 52.9%97041.8% 7675.2% 96
1884 50.9%84544.8% 7434.2% 70
1880 49.5%83247.0% 7903.3% 57

Recreation

State parks

National forests and wilderness

National wildlife refuges

Historic trail

Recreational trails

Scenic byway

Golf courses

Communities

Cities

Towns

Census-designated places

Unincorporated communities

See also

Related Research Articles

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Columbine, Colorado Census Designated Place in Colorado, United States

Columbine is an unincorporated community and a census-designated place (CDP) located in and governed by Jefferson and Arapahoe counties, Colorado, United States. The CDP is a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area. Located primarily in Jefferson County, Columbine lies immediately south of Denver. The population of the Columbine CDP was 24,280 at the United States Census 2010. The community lies in ZIP code 80123.

Applewood, Colorado Census Designated Place in Colorado, United States

Applewood is an unincorporated community and a census-designated place (CDP) located in and governed by Jefferson County, Colorado, United States. The CDP is a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area. The population of the Applewood CDP was 7,160 at the United States Census 2010. The Golden post office serves the area.

Aspen Park, Colorado Census Designated Place in Colorado, United States

Aspen Park is an unincorporated community and a census-designated place (CDP) located in Jefferson County, Colorado, United States. The CDP is a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area. The population of the Aspen Park CDP was 882 at the United States Census 2010. The Aspen Park Metropolitan District provides services. The Conifer post office serves the area.

Evergreen, Colorado Census Designated Place in Colorado, United States

Evergreen is an unincorporated town, a post office, and a census-designated place (CDP) located in and governed by Jefferson County, Colorado, United States. The CDP is a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area. The Evergreen post office has the ZIP Codes 80439 and 80437. At the United States Census 2010, the population of the Evergreen CDP was 9,038, while the population of the 80439 ZIP Code Tabulation Area was 23,778 including adjacent areas. The Evergreen Metropolitan District provides services.

Indian Hills, Colorado Census Designated Place in Colorado, United States

Indian Hills is an unincorporated town, a post office, and a census-designated place (CDP) located in and governed by Jefferson County, Colorado, United States. The CDP is a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area. The Indian Hills post office has the ZIP code 80454. At the United States Census 2010, the population of the Indian Hills CDP was 1,280, while the population of the 80454 ZIP Code Tabulation Area was 1,224.

Ken Caryl, Colorado Census Designated Place in Colorado, United States

Ken Caryl, commonly known as Ken Caryl Ranch, is an unincorporated community and a census-designated place (CDP) located in and governed by Jefferson County, Colorado, United States. The CDP is a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area. The population of the Ken Caryl CDP was 32,438 at the United States Census 2010. The Ken Caryl Ranch Metropolitan District and the Ken Caryl Ranch Water District provide services. The Littleton post office serves the area.

Kittredge, Colorado Census Designated Place in Colorado, United States

Kittredge is an unincorporated town, a post office, and a census-designated place (CDP) located in and governed by Jefferson County, Colorado, United States. The CDP is a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area. The Kittredge post office has the ZIP code 80457. At the United States Census 2010, the population of the Kittredge CDP was 1,304, while the population of the 80457 ZIP Code Tabulation Area was 612.

Jefferson County Public Schools (Colorado) School in West Pleasant View, Colorado

Jefferson County School District R-1 is a school district in Jefferson County, Colorado. The district is headquartered at the Jeffco Public Schools Education Center in West Pleasant View, an unincorporated area of the county near Golden in the Denver-Aurora-Lakewood, CO Metropolitan Statistical Area. Jeffco Public Schools serves almost 81,000 students in 166 schools. It is the second-largest school district in Colorado, having been surpassed in 2013 by Denver Public Schools, which has an enrollment of approximately 87,000.

Idledale, Colorado Census Designated Place in Colorado, United States

Idledale is an unincorporated town, a post office, and a census-designated place (CDP) located in and governed by Jefferson County, Colorado, United States. The CDP is a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area. The Idledale post office has the ZIP code 80453. At the United States Census 2010, the population of the Idledale CDP was 252, while the population of the 80453 ZIP Code Tabulation Area was 197.

Index of Colorado-related articles Wikipedia list article

The following is an alphabetical list of articles related to the U.S. state of Colorado.

Outline of Colorado Overview of and topical guide to Colorado

The following outline is provided as an overview of and topical guide to the U.S. state of Colorado:

References

  1. 1 2 "State & County QuickFacts". United States Census Bureau. Archived from the original on June 6, 2011. Retrieved June 8, 2014.
  2. "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
  3. "Centers of Population by State: 2010". United States Census Bureau. Archived from the original on January 3, 2014. Retrieved June 8, 2014.
  4. Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. pp.  168.
  5. "An Act to provide a temporary Government for the Territory of Colorado" (PDF). Thirty-sixth United States Congress. February 28, 1861. Retrieved November 26, 2007.
  6. "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. February 12, 2011. Retrieved April 23, 2011.
  7. "U.S. Census" (main website). United States Census Bureau . Retrieved March 23, 2018.
  8. U.S. Decennial Census (Report). United States Census Bureau . Retrieved June 8, 2014.
  9. Historical Census Browser. UVA Libraries (Report). University of Virginia . Retrieved June 8, 2014.
  10. Population of Counties by Decennial Census: 1900 to 1990 (Report). United States Census Bureau . Retrieved June 8, 2014.
  11. Ranking Tables for Counties: 1990 and 2000 (PDF) (Report). Census 2000. United States Census Bureau. PHC-T-4. Retrieved June 8, 2014.
  12. "U.S. Census" (main website). United States Census Bureau . Retrieved May 14, 2011.
  13. Dwyer-Lindgren, Laura (May 8, 2017). "Inequalities in life expectancy among U.S. counties, 1980 to 2014". JAMA Internal Medicine. 177 (7): 1003–1011. doi:10.1001/jamainternmed.2017.0918. PMC   5543324 . PMID   28492829.
  14. "FCI Englewood Contact Information." Federal Bureau of Prisons. Retrieved on July 28, 2010.
  15. Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved November 26, 2020.

Coordinates: 39°35′N105°15′W / 39.59°N 105.25°W / 39.59; -105.25