Thornton, Colorado

Thornton, Colorado
Thornton welcome sign on Interstate 25.
Thornton welcome sign on Interstate 25.
Flag of Thornton, Colorado
Location of the City of Thornton in Adams and Weld counties, Colorado.
Location of the City of Thornton in Adams and Weld counties, Colorado.
Thornton is located in Colorado
Thornton
Thornton
Location of Thornton in the United States
Thornton is located in the United States
Thornton
Thornton
Thornton (the United States)
Coordinates: 39°54′11″N 104°57′16″W / 39.90306°N 104.95444°W / 39.90306; -104.95444
Country United States
State Colorado
Counties[2]Adams County
Weld County
City[1]Thornton
IncorporatedJune 12, 1956[3]
Named forDaniel I.J. Thornton
Government
 • TypeHome rule municipality[1]
 • MayorJanifer "Jan" Kulmann (Since 2019)
 • City ManagerKevin Woods (Since 2017)
Area
 • Total37.947 sq mi (98.282 km2)
 • Land35.924 sq mi (93.043 km2)
 • Water2.023 sq mi (5.239 km2)
Elevation5,351 ft (1,631 m)
Population
 • Total141,867
 • Rank6th in Colorado
191st in the United States
 • Density3,949/sq mi (1,525/km2)
 • Metro
2,963,821 (19th)
 • CSA
3,623,560 (17th)
 • Front Range
5,055,344
Time zoneUTC−07:00 (MST)
 • Summer (DST)UTC−06:00 (MDT)
ZIP codes[6]
Denver 80221, 80229, 80233, 80241, 80260
Brighton 80602
Area code(s)Both 303 and 720
FIPS code08-77290
GNIS feature ID0181265
Highways
WebsiteCity of Thornton
Sixth most populous Colorado city

Thornton is a home rule municipality located in Adams and Weld counties, Colorado, United States.[1] The city population was 141,867, all in Adams County, at the 2020 United States Census, an increase of +19.44% since the 2010 United States Census.[4] Thornton is the sixth most populous city in Colorado and the 191st most populous city in the United States. Thornton is 10 miles (16 km) north of the Colorado State Capitol in Denver and is a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area.

  1. ^ a b c d "Active Colorado Municipalities". State of Colorado, Colorado Department of Local Affairs, Division of Local Government. Retrieved January 28, 2021.
  2. ^ "Colorado Counties". State of Colorado, Colorado Department of Local Affairs, Division of Local Government. Retrieved January 28, 2021.
  3. ^ "Colorado Municipal Incorporations". State of Colorado, Department of Personnel & Administration, Colorado State Archives. December 1, 2004. Retrieved September 2, 2007.
  4. ^ a b c "Decennial Census P.L. 94-171 Redistricting Data". United States Census Bureau, United States Department of Commerce. August 12, 2021. Retrieved September 4, 2021.
  5. ^ "US Board on Geographic Names". United States Geological Survey. October 25, 2007. Retrieved January 31, 2008.
  6. ^ "ZIP Code Lookup" (JavaScript/HTML). United States Postal Service. Retrieved January 6, 2008.

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