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Thornton


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Thornton
City
Thornton welcome sign on Interstate 25
Thornton welcome sign on Interstate 25
Location of Thornton in Adams County and Weld County, Colorado.
Location of Thornton in Adams County and Weld County, Colorado.
Thornton is located in Colorado
Thornton
Thornton
Location in Colorado
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Thornton is located in the United States
Thornton
Thornton
Thornton (the United States)
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Coordinates: 39°54′11″N 104°57′16″W / 39.90306°N 104.95444°W / 39.90306; -104.95444Coordinates: 39°54′11″N 104°57′16″W / 39.90306°N 104.95444°W / 39.90306; -104.95444
Country United States
State Colorado
Counties[1] Adams County
Weld County
Incorporated June 12, 1956[2]
Named for Daniel I.J. Thornton
Government
 • Type Home rule municipality[1]
 • Mayor Heidi K. Williams (Since 2011)
 • City Manager Kevin Woods (Since 2017)
Area
[3]
 • 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
[4]
5,351 ft (1,631 m)
Population
 (2010)
 • Total 118,772 (US: 191st)
 • Estimate 
(2016)[5]
136,703
 • Density 3,817.24/sq mi (1,473.85/km2)
Time zone UTC−7 (MST)
 • Summer (DST) UTC−6 (MDT)
ZIP codes[6]
Denver 80221, 80229, 80233, 80241, 80260
Brighton 80602
Area code(s) Both 303 and 720
FIPS code 08-77290
GNIS feature ID 0181265
Highways I-25, I-76, SH 7, SH 44, SH 224, E-470
Website City of Thornton
Sixth-most populous Colorado city