Summit County is a

county A county is a geographic region of a country used for administrative or other purposesChambers Dictionary, L. Brookes (ed.), 2005, Chambers Harrap Publishers Ltd, Edinburgh in certain modern nations. The term is derived from the Old French ...

located in the

U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sover ...

Colorado Colorado (, other variants) is a state in the Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the western edge of t ...

. As of the 2020 census, the population was 31,055. The

county seat A county seat is an administrative center, seat of government, or capital city of a county or civil parish. The term is in use in Canada, China, Hungary, Romania, Taiwan, and the United States. The equivalent term shire town is used in the US st ...

and largest town is Breckenridge. Summit County comprises the Breckenridge, CO Micropolitan Statistical Area.

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 Routt County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 24,829. The county seat is Steamboat Springs. Routt County comprises the Steamboat Springs, CO Micropolitan Statistical Area. History P ...

, Moffat County, Garfield County,

Eagle County Eagle County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 55,731. The county seat is the Town of Eagle and the most populous community is Edwards. The county is named for the Eagle River. Eagl ...

, 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 ''Garfield'' is an American comic strip created by Jim Davis. Originally published locally as ''Jon'' in 1976, then in nationwide syndication from 1978 as ''Garfield'', it chronicles the life of the title character Garfield the cat, his human ...

and

Eagle Eagle is the common name for many large birds of prey of the family Accipitridae. Eagles belong to several groups of genera, some of which are closely related. Most of the 68 species of eagle are from Eurasia and Africa. Outside this area, just ...

counties in 1883, Summit County arrived at its present boundaries. In addition, Summit County has seen two major boom eras.

Geography

According to the

U.S. Census Bureau The United States Census Bureau (USCB), officially the Bureau of the Census, is a principal agency of the U.S. Federal Statistical System, responsible for producing data about the American people and economy. The Census Bureau is part of the ...

, the county has a total area of , of which is land and (1.8%) is water. The terrain of the county is mountainous with elevations ranging from at

Green Mountain Reservoir Green Mountain Reservoir lies at the northern end of Summit County, Colorado along the Blue River. The Green Mountain Dam was built between 1938 and 1942 by the United States Bureau of Reclamation. The reservoir and its dam store water to benefi ...

to at

Grays Peak Grays Peak is the tenth-highest summit of the Rocky Mountains of North America and the U.S. state of Colorado. The prominent fourteener is the highest summit of the Front Range and the highest point on the Continental Divide and the Conti ...

. The elevation of the county seat of Breckenridge is , making it one of the highest cities in the state of Colorado and the United States. Much of the county has an

Alpine Alpine may refer to any mountainous region. It may also refer to: Places Europe * Alps, a European mountain range ** Alpine states, which overlap with the European range Australia * Alpine, New South Wales, a Northern Village * Alpine National Pa ...

(ET in the

Köppen Classification Köppen is a German surname. Notable people with the surname include: * Bernd Köppen (born 1951), German pianist and composer * Carl Köppen (1833-1907), German military advisor in Meiji era Japan * Edlef Köppen (1893–1939), German author an ...

) characterized by

tundra In physical geography, tundra () is a type of biome where tree growth is hindered by frigid temperatures and short growing seasons. The term ''tundra'' comes through Russian (') from the Kildin Sámi word (') meaning "uplands", "treeless moun ...

vegetation. Breckenridge and other similar elevations in the county have a

Subarctic climate The subarctic climate (also called subpolar climate, or boreal climate) is a climate with long, cold (often very cold) winters, and short, warm to cool summers. It is found on large landmasses, often away from the moderating effects of an ocean, ge ...

(Dfc) characterized by cool summers and abundant snowfall in winter.

Adjacent counties

* Grand County – north *

Clear Creek County Clear Creek County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 9,397. The county seat is Georgetown. Clear Creek County is part of the Denver metropolitan area. History Clear Creek County wa ...

– east * Park County – southeast * Lake County – southwest *

– west

Major Highways

Interstate 70 Interstate 70 (I-70) is a major east–west Interstate Highway System, Interstate Highway in the United States that runs from Interstate 15, I-15 near Cove Fort, Utah, to a park and ride lot just east of Interstate 695 (Maryland), I-695 in ...

* *

U.S. Highway 6 U.S. Route 6 (US 6), also called the Grand Army of the Republic Highway, honoring the American Civil War Grand Army of the Republic, veterans association, is a main route of the U.S. Highway system. While it currently runs east-northeast fr ...

State Highway 9 * Colorado 91

State Highway 91

Demographics

As of the

census A census is the procedure of systematically acquiring, recording and calculating information about the members of a given population. This term is used mostly in connection with national population and housing censuses; other common censuses incl ...

of 2000, there were 23,548 people, 9,120 households, and 4,769 families residing in the county. The

population density Population density (in agriculture: standing stock or plant density) is a measurement of population per unit land area. It is mostly applied to humans, but sometimes to other living organisms too. It is a key geographical term.Matt RosenberPopul ...

was 39 people per square mile (15/km²). There were 24,201 housing units at an average density of 40 per square mile (15/km²). The racial makeup of the county was 91.84%

White White is the lightest color and is achromatic (having no hue). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully reflect and scatter all the visible wavelengths of light. White on ...

, 0.68%

Black Black is a color which results from the absence or complete absorption of visible light. It is an achromatic color, without hue, like white and grey. It is often used symbolically or figuratively to represent darkness. Black and white have o ...

African American African Americans (also referred to as Black Americans and Afro-Americans) are an ethnic group consisting of Americans with partial or total ancestry from sub-Saharan Africa. The term "African American" generally denotes descendants of ens ...

, 0.48% Native American, 0.87%

Asian Asian may refer to: * Items from or related to the continent of Asia: ** Asian people, people in or descending from Asia ** Asian culture, the culture of the people from Asia ** Asian cuisine, food based on the style of food of the people from Asi ...

, 0.07%

Pacific Islander Pacific Islanders, Pasifika, Pasefika, or rarely Pacificers are the peoples of the list of islands in the Pacific Ocean, Pacific Islands. As an ethnic group, ethnic/race (human categorization), racial term, it is used to describe the original p ...

, 3.96% from

other races Other often refers to: * Other (philosophy), a concept in psychology and philosophy Other or The Other may also refer to: Film and television * ''The Other'' (1913 film), a German silent film directed by Max Mack * ''The Other'' (1930 film), a ...

, and 2.10% from two or more races. 9.79% of the population were

Hispanic The term ''Hispanic'' ( es, hispano) refers to people, Spanish culture, cultures, or countries related to Spain, the Spanish language, or Hispanidad. The term commonly applies to countries with a cultural and historical link to Spain and to Vic ...

Latino Latino or Latinos most often refers to: * Latino (demonym), a term used in the United States for people with cultural ties to Latin America * Hispanic and Latino Americans in the United States * The people or cultures of Latin America; ** Latin A ...

of any race. 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 Marriage, also called matrimony or wedlock, is a culturally and often legally recognized union between people called spouses. It establishes rights and obligations between them, as well as between them and their children, and between t ...

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. 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 Per capita income (PCI) or total income measures the average income earned per person in a given area (city, region, country, etc.) in a specified year. It is calculated by dividing the area's total income by its total population. Per capita i ...

for the county was $28,676. About 3.10% of families and 9.00% of the population were below the

poverty line The poverty threshold, poverty limit, poverty line or breadline is the minimum level of income deemed adequate in a particular country. The poverty line is usually calculated by estimating the total cost of one year's worth of necessities for t ...

, including 4.30% of those under age 18 and 3.40% of those age 65 or over. The 2019 average real estate prices in Summit County were $1,262,929 for a single family home, $559,776 for a condo, townhome or duplex and $344,945 for a vacant piece of land (YTD through December 2019).

Life expectancy

According to a report in the

Journal of the American Medical Association ''The Journal of the American Medical Association'' (''JAMA'') is a peer-reviewed medical journal published 48 times a year by the American Medical Association. It publishes original research, reviews, and editorials covering all aspects of bio ...

, residents of Summit County had a 2014 life expectancy from birth of 86.83 years in 2014, the longest in the United States. 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. Two contiguous counties, Pitkin and

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.Achenbach, Joel, "U.S. life expectancy varies more than 20 years from county to county," ''Washington Post'', May 8, 2017

Politics

Summit County is liberal in most elections.

Communities

Towns

* Blue River * Breckenridge *

Dillon Dillon may refer to: People *Dillon (surname) * Dillon (given name) * Dillon (singer) (born 1988), Brazilian singer *Viscount Dillon, a title in the Peerage of Ireland Places Canada *Dillon, Saskatchewan United States *Dillon Beach, Californi ...

* Frisco * Montezuma * Silverthorne

Census-designated places

* Copper Mountain * Heeney * Keystone

Ghost towns

Dyersville Dyersville is a city in eastern Delaware County and western Dubuque County in the U.S. state of Iowa. It is part of the Dubuque, Iowa, Metropolitan Statistical Area. The population was 4,477 at the time of the 2020 census, up from 4,035 in 200 ...

* Kokomo * Parkville * Preston * Saints John *

Tiger The tiger (''Panthera tigris'') is the largest living cat species and a member of the genus '' Panthera''. It is most recognisable for its dark vertical stripes on orange fur with a white underside. An apex predator, it primarily preys on u ...

Recreation

National protected areas

White River National Forest White River National Forest is a United States National Forest, National Forest in northwest Colorado. It is named after the White River (Green River), White River that passes through its northern section. It is the most visited National Forest ...

Eagles Nest Wilderness The Eagles Nest Wilderness is a U.S. Wilderness Area located in the Gore Range near Vail, Copper Mountain, Frisco, Silverthorne, and Heeney, in Summit and Eagle Counties, Colorado. Eagles Nest Wilderness falls within the jurisdiction of Dillo ...

Ski areas

Arapahoe Basin Arapahoe Basin ( ; often shortened to A-Basin, or simply The Basin) is an alpine ski area in the Rocky Mountains of the United States, in the Arapaho National Forest of Colorado. Arapahoe Basin is known for its extended season—usually staying op ...

* Breckenridge * Copper Mountain * Keystone

Trails and byways

American Discovery Trail The American Discovery Trail is a system of recreational trails and roads that collectively form a coast-to-coast hiking and biking trail across the mid-tier of the United States. Horses can also be ridden on most of this trail. The coastal tra ...

Colorado Trail The Colorado Trail is a long-distance trail running for from the mouth of Waterton Canyon southwest of Denver to Durango in Colorado, United States. Its highest point is above sea level, and most of the trail is above . Despite its high elevat ...

Continental Divide National Scenic Trail The Continental Divide National Scenic Trail (in short Continental Divide Trail (CDT)) is a United States National Scenic Trail with a length measured by the Continental Divide Trail Coalition of between the U.S. border with Chihuahua, Mexico a ...

Great Parks Bicycle Route The Great Parks Bicycle Route is a two-part bicycle touring route developed and mapped by Adventure Cycling Association. Great Parks North runs 751.5 miles (1209.4 km) from Jasper, Alberta, Canada, to Missoula, Montana, U.S. Great Parks South extend ...

Top of the Rockies National Scenic Byway The Top of the Rockies National Scenic Byway is a National Scenic Byway and Colorado Scenic and Historic Byway located in the high Rocky Mountains of Eagle County, Colorado, Eagle, Lake County, Colorado, Lake, Pitkin County, Colorado, Pitkin, Summ ...

* TransAmerica Trail Bicycle Route *

Vail Pass National Recreation Trail Vail is a home rule municipality in Eagle County, Colorado, United States. The population of the town was 4,835 in 2020. Home to Vail Ski Resort, the largest ski mountain in Colorado, the town is known for its hotels, dining, and for the numer ...

Wheeler Ten Mile National Recreation Trail Wheeler may refer to: Places United States * Wheeler, Alabama, an unincorporated community * Wheeler, Arkansas, an unincorporated community * Wheeler, California, an unincorporated community * Wheeler, Illinois, a village * Wheeler, Indiana, a c ...

Lakes

The county has two reservoirs,

Lake Dillon Dillon Reservoir, sometimes referred to as Lake Dillon, is a large fresh water reservoir located in Summit County, Colorado, United States, south of I-70 and bordered by the towns of Frisco, Silverthorne, and Dillon. It is a reservoir for the ...

and Green Mountain Reservoir, that are also popular recreation sites.

Islands

Silver Dollar Island Silver Dollar Island is a small island in Summit County, Colorado. It is in the Blue River arm of the Dillon Reservoir, east of the Frisco Peninsula. Its coordinates are and it sits at an elevation of 2,750 meters. It appears on a 1970 USGS ma ...

References

External links

*
Colorado County Evolution by Don StanwyckColorado Historical Society
{{authority control Colorado counties 1861 establishments in Colorado Territory Populated places established in 1861