Summit County, Colorado

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Summit County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 31,055,[1] and was estimated to be 30,882 in 2024.[2] The county seat of Breckenridge.[3] Summit County comprises the Breckenridge, CO Micropolitan Statistical Area.[4][5]

History

Summit County was organized as one of the seventeen original Colorado counties by the First Territorial Legislature on November 1, 1861. It was named for the many mountain summits in the county. Until February 2, 1874, its boundaries included the area now comprising Summit County, Grand County, Routt County, Moffat County, Garfield County, Eagle County, and Rio Blanco County.

In 1874, the northern half of the original Summit County was split off to form Grand County; with the creation of Garfield and Eagle counties in 1883, Summit County arrived at its present boundaries. In addition, Summit County has seen two major boom eras.

Geography

According to the United States Census Bureau, the county has a total area of Script error: No such module "convert"., of which Script error: No such module "convert". is land and Script error: No such module "convert". (1.77%) is water.[6] It is the 55th largest county in Colorado by total area.[7]

The terrain of the county is mountainous with elevations ranging from Script error: No such module "convert". at Green Mountain Reservoir to Script error: No such module "convert". at Grays Peak. The elevation of the county seat of Breckenridge is Script error: No such module "convert"., making it one of the highest cities in the state of Colorado and the United States.[8] Much of the county has an alpine climate (ET in the Köppen Classification) characterized by tundra vegetation. Breckenridge and other similar elevations in the county have a subarctic climate (Dfc) characterized by cool summers and abundant snowfall in winter.

Adjacent counties

Major highways

Demographics

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Historical population
CensusPop.Template:Sronly
1870258
18805,459Script error: No such module "String".%
18901,906Script error: No such module "String".%
19002,744Script error: No such module "String".%
19102,003Script error: No such module "String".%
19201,724Script error: No such module "String".%
1930987Script error: No such module "String".%
19401,754Script error: No such module "String".%
19501,135Script error: No such module "String".%
19602,073Script error: No such module "String".%
19702,665Script error: No such module "String".%
19808,848Script error: No such module "String".%
199012,281Script error: No such module "String".%
200023,548Script error: No such module "String".%
201027,994Script error: No such module "String".%
202031,055Script error: No such module "String".%
2024 (est.)30,882[9]Script error: No such module "String".%
U.S. Decennial Census[10]
1790–1960[11] 1900–1990[12]
1990–2000[13] 2010–2020[2]

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2020 census

As of the 2020 census, the county had a population of 31,055. Of the residents, 16.8% were under the age of 18 and 13.0% were 65 years of age or older; the median age was 38.1 years. For every 100 females there were 119.5 males, and for every 100 females age 18 and over there were 120.7 males. 83.9% of residents lived in urban areas and 16.1% lived in rural areas.[14][15][16]

The racial makeup of the county was 79.7% White, 0.8% Black or African American, 0.8% American Indian and Alaska Native, 1.3% Asian, 0.1% Native Hawaiian and Pacific Islander, 8.8% from some other race, and 8.5% from two or more races. Hispanic or Latino residents of any race comprised 17.2% of the population.[16]

There were 12,939 households in the county, of which 24.8% had children under the age of 18 living with them and 18.0% had a female householder with no spouse or partner present. About 26.5% of all households were made up of individuals and 6.6% had someone living alone who was 65 years of age or older.[15]

There were 31,342 housing units, of which 58.7% were vacant. Among occupied housing units, 63.9% were owner-occupied and 36.1% were renter-occupied. The homeowner vacancy rate was 1.9% and the rental vacancy rate was 26.6%.[15]

2000 census

As of the 2000 census, there were 23,548 people, 9,120 households, and 4,769 families residing in the county. The population density was Script error: No such module "convert".. There were 24,201 housing units at an average density of Script error: No such module "convert".. The racial makeup of the county was 91.84% White, 0.68% African American, 0.48% Native American, 0.87% Asian, 0.07% Pacific Islander, 3.96% from some other races and 2.10% from two or more races. Hispanic or Latino people of any race were 9.79% of the population.

There were 9,120 households, out of which 24.00% had children under the age of 18 living with them, 44.00% were married couples living together, 4.40% had a female householder with no husband present, and 47.70% were non-families. 21.60% of all households were made up of individuals, and 1.60% had someone living alone who was 65 years of age or older. The average household size was 2.48 and the average family size was 2.86.

In the county, the population was spread out, with 17.40% under the age of 18, 15.70% from 18 to 24, 44.30% from 25 to 44, 19.40% from 45 to 64, and 3.30% who were 65 years of age or older. The median age was 31 years. As of 2014, the life expectancy in Summit County was 86.83 years, the longest average life expectancy of any county in the United States.[17] For every 100 females there were 139.00 males. For every 100 females age 18 and over, there were 144.90 males.

The median income for a household in the county was $56,587, and the median income for a family was $66,914 (these figures had risen to $65,281 and $80,441 respectively as of a 2007 estimate). Males had a median income of $33,741 versus $27,017 for females. The per capita income for the county was $28,676. About 3.10% of families and 9.00% of the population were below the poverty line, including 4.30% of those under age 18 and 3.40% of those age 65 or over.

File:Reservoir in the Rocky Mountains.jpg
Snowmelt runoff fills Lake Dillon in Summit County

Life expectancy

According to a report in the Journal of the American Medical Association, residents of Summit County had a 2014 life expectancy from birth of 86.83 years in 2014, the longest in the United States.[18] Both men and women live longer in Summit County than in any other county in the United States: 85.5 years for men and 88.0 years for women is the life expectancy at birth.[19] Two contiguous counties, Pitkin and Eagle Counties, rank numbers two and three in the nation in life expectancy. Factors contributing to the high life expectancy in Summit County are "high education, high income, high access to medical care, the people are physically active, obesity is lower than anywhere else — so you’re doing it right,” said Dr. Ali Mokdad, one of the study's co-authors.[20]

Education

K–12 schools

Elementary schools

  • Breckenridge Elementary School
  • Dillon Valley Elementary School (Dillon)
  • Frisco Elementary School
  • Silverthorne Elementary School
  • Summit Cove Elementary School (Dillon)
  • Upper Blue Elementary School (Breckenridge)

Middle school

  • Summit Middle School (Frisco)

High schools

  • Snowy Peaks Junior/Senior High School (Frisco)
  • Summit High School (between Frisco and Breckenridge)

Higher education

Colorado Mountain College operates campuses in Breckenridge and Dillon.

Politics

Summit County is liberal in most elections. Since 1988 the county has trended strongly toward the Democratic Party, like many other counties in Colorado dominated by ski towns. In 2020, Joe Biden's performance was the best by a Democrat since 1916, and Kamala Harris' performance was only slightly worse in 2024.

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Communities

Towns

Census-designated places

Ghost towns

Recreation

National protected areas

Ski areas

Trails and byways

Lakes

The county has three reservoirs, Lake Dillon, Green Mountain Reservoir, and Clinton Gulch Dam Reservoir that are also popular recreation sites.

Islands

Concert venues

See also

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References

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Gold specimen from the Breckenridge Mining District

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  5. See the Colorado census statistical areas.
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  8. "Elevation distribution for all U.S. cities," http://www.city-data.com/top13.html, accessed August 2, 2017
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  19. "County Profile: Summit County Colorado," http://www.healthdata.org/sites/default/files/files/county_profiles/US/2015/County_Report_Summit_County_Colorado.pdf, accessed August 2, 2017
  20. Achenbach, Joel, "U.S. life expectancy varies more than 20 years from county to county," Washington Post, May 8, 2017

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External links

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