Thornton welcome sign on Interstate 25
Location of Thornton in Adams County and Weld County, Colorado.
THORNTON COLORADO Latitude and Longitude:
|Incorporated||June 12, 1956 |
|Named for||Daniel I.J. Thornton|
|• Type||Home rule municipality |
|• Mayor||Heidi K. Williams (Since 2011)|
|• Mayor Pro Tem||Jan Kulmann (Since 2017)|
|• City Manager||Kevin Woods (Since 2017)|
|• Total||36.88 sq mi (95.52 km2)|
|• Land||35.81 sq mi (92.75 km2)|
|• Water||1.07 sq mi (2.77 km2)|
|Elevation||5,351 ft (1,631 m)|
|• Total||118,772 (US: 191st)|
| • Estimate |
|• Density||3,817.24/sq mi (1,473.85/km2)|
|Time zone||UTC−7 ( MST)|
|• Summer ( DST)||UTC−6 ( MDT)|
|ZIP codes |
Denver 80221, 80229, 80233, 80241, 80260
|Area code(s)||Both 303 and 720|
|GNIS feature ID||0181265|
|Highways||I-25, I-76, SH 7, SH 44, SH 224, E-470|
|Website||City of Thornton|
Thornton is a home rule municipality in Adams and Weld counties in the U.S. state of Colorado, located in the northeast quadrant of the Denver-Aurora-Broomfield, CO Metropolitan Statistical Area. Thornton is 10 miles (16 km) north/northeast of downtown Denver. The United States Census Bureau reported the city's growing population at 118,772 on April 1, 2010,  a 44.2% increase from the 2000 Census population of 82,384. Thornton is the sixth-most populous city in the state of Colorado and the 213th-most populous city in the United States.
Thornton consisted solely of farmland until 1953 when Sam Hoffman purchased a lot off Washington Street about seven miles (11 km) north of Denver. The town he laid out was the first fully planned community in Adams County, and the first to offer full municipal services from a single tax levy, including recreation services and free trash pickup. Thornton was named in honor of Former Colorado Governor Dan Thornton.
The Thornton Community Association (TCA) was formed in 1954 to help guide the new community's development. By the end of 1955, Thornton had 5,500 residents in over 1,200 homes. The TCA was instrumental in Thornton's 1956 incorporation as a city. Oyer G. Leary was elected the first mayor. 
Thornton is located at (39.903043, -104.954406).
According to the United States Census Bureau, the city has a total area of 27.2 square miles (70 km2), of which, 26.9 square miles (70 km2) is land and 0.3 square miles (0.78 km2) (1.25%) is water.
|U.S. Decennial Census |
As of the 2010 census, there were 118,772 people, 41,359 households, and 30,254 families residing in the city. The population density was 3,409.1 people per square mile (1,316.8/km²). There were 43,230 housing units at an average density of 1,240.8 per square mile (479.3/km²). The racial makeup of the city was 77.4% White, 4.4% Asian, 1.8% African American, 1.1% American Indian, 0.1% Pacific Islander, 11.4% from other races, and 3.8% from two or more races. Hispanics and Latinos of any race were 31.7% of the population. 
There were 41,359 households out of which 43.9% had children under the age of 18 living with them, 54.7% were married couples living together, 6.2% had a male householder with no wife present, 12.2% had a female householder with no husband present, and 26.9% were non-families. 20.1% of all households were made up of individuals, and 4.2% had someone living alone who was 65 years of age or older. The average household size was 2.86, and the average family size was 3.32. 
The distribution of the population by age was 29.5% under the age of 18, 9.1% from 18 to 24, 32.6% from 25 to 44, 22.3% from 45 to 64, and 6.5% who were 65 years of age or older. The median age was 32.0 years. The gender makeup of the city was 49.5% male and 50.5% female. 
The median income for a household in the city was $65,578, and the median income for a family was $74,233. Males had a median income of $49,154 versus $39,596 for females. The city's per capita income was $26,100. About 7.8% of families and 9.9% of the population were below the poverty line, including 14.1% of those under age 18 and 7.4% of those age 65 or over. 
Thornton has 81 city parks and nearly 2,000 acres (8.1 km2) of parks and open space.  There are over 80 miles (130 km) of trails throughout the city. Recreational facilities include the Margaret Carpenter Recreation Center  and the Thornton Community Center.  Golf courses include the Thorncreek Golf Course  and Todd Creek Golf. 
The major airport that serves Thornton is Denver International Airport.
Thornton is served primarily by three school districts: Adams County School District 12, Mapleton Public Schools, and Brighton School District 27J. These include four high schools ( Thornton High School, Vantage Point High School, Skyview High School, and Horizon High School), five middle schools and fourteen elementary schools. There are several charter schools in or near Thornton: Stargate School, Colorado Virtual Academy, New America School, Westgate Community Charter School.
Thornton has several libraries and is served by the Rangeview Library District. 
Thornton has several shopping areas, such as Larkridge Mall, Thornton Town Center, and Thorncreek Crossing Shopping Center. Larkridge is home to national anchor tenants, big box retailers, and restaurants, and has a pedestrian village. Larkridge is anchored by Colorado's first Sears Grand store, Dick's Sporting Goods, Bed, Bath & Beyond, and PetsMart. DaveCo Liquor Store is the largest liquor store in the world. 
Notable individuals who were born in or have lived in Thornton include:
- Tesho Akindele (1992- ), soccer forward 
- Josh Bredl (1991- ), pro wrestler 
- Edward Casso (1974- ), Colorado state legislator 
- John Denney (1978- ), football long snapper 
- Beth Martinez Humenik, Colorado state legislator 
- Mike Manning (1987- ), actor 
- Nikki Marshall (1988- ), soccer forward, defender 
- Mike McCoy (1953-2016), football cornerback 
- Adrian Mora (1978- ), welterweight boxer 
- Joseph Salazar, Colorado state legislator 
- Kyle Sleeth (1981- ), baseball starting pitcher 
- Neal Ulevich (1946- ), photojournalist 
- Outline of Colorado
State of Colorado
- Colorado cities and towns
- Colorado counties
- Colorado metropolitan areas
- "Active Colorado Municipalities". State of Colorado, Department of Local Affairs. Archived from the original on 2010-11-23. Retrieved 2007-09-01.
- "Colorado Municipal Incorporations". State of Colorado, Department of Personnel & Administration, Colorado State Archives. 2004-12-01. Retrieved 2007-09-02.
- "2016 U.S. Gazetteer Files". United States Census Bureau. Retrieved Jul 25, 2017.
- "US Board on Geographic Names". United States Geological Survey. 2007-10-25. Retrieved 2008-01-31.
- "Population and Housing Unit Estimates". Retrieved June 9, 2017.
- "Incorporated Places and Minor Civil Divisions: Colorado". Population Census. 2010 United States Census. 2011-07-18. Retrieved 2011-08-07.
- Wagner, Alvin (1977). "Thornton Was First Planned Community". Adams County: Crossroads of the West. Volume II. Brighton, Colorado: Board of Adams County Commissioners. ISBN 0-930952-01-4.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- "Census of Population and Housing". Census.gov. Retrieved June 4, 2015.
- "American FactFinder". United States Census Bureau. Retrieved 2015-03-19.
- Thornton city parks and recreation facilities Archived 2010-07-06 at the Wayback Machine.
- Margaret Carpenter Recreation Center Archived 2010-02-23 at the Wayback Machine.
- Thornton Community Center
- Thorncreek Golf Course
- Todd Creek Golf
- Rangeview Library District
- Groke, Nick (2014-01-28). "Tesho Akindele of Colorado Mines takes unusual route to MLS". The Denver Post. Retrieved 2016-04-27.
- "Josh Bredl". WWE Tough Enough. Retrieved 2016-04-27.
- "Edward Casso's Biography". Vote Smart. Retrieved 2016-04-27.
- "John Denney". Miami Dolphins. Retrieved 2016-04-27.
- "Beth Martinez Humenik's Biography". Vote Smart. Retrieved 2016-04-27.
- Samuelson, Ruth (2009-11-02). "Meet Real World DC Cast Member Mike". Washington City Paper. Retrieved 2016-04-27.
- "Nikki Marshall". University of Colorado Athletics. Retrieved 2016-04-27.
- "Former Packers defensive back Mike C. McCoy dies at age 62". ESPN. 2016-02-22. Retrieved 2016-04-27.
- "Adrian Mora". BoxRec. Retrieved 2016-04-27.
- "Joseph Salazar's Biography". Vote Smart. Retrieved 2016-04-27.
- "Kyle Sleeth". Baseball-Reference.com. Retrieved 2016-04-27.
- "Member Profile: Neal Ulevich". Blurb. Retrieved 2016-04-27.