Thornton, CO - Geographic Facts & Maps

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2. North America
3. United States
4. Colorado
5. Adams County
6. Thornton

Thornton, Colorado

Thornton: The seventh most populous city in Colorado. It is located in the northeastern part of the state. Thornton is known for its many parks and green spaces, its many historical sites, and its many attractions, such as the Thornton Historical Society and the Thornton Town Center.

About

Thornton is a city located in the county of Adams in the U.S. state of Colorado. Its population at the 2010 census was 118,772. After 10 years in 2020 city had an estimated population of 148,113 inhabitants.

The city was created 69 years ago in 1956.

Thornton is a city located in Adams County in the Denver metropolitan area. With over 148,000 residents, Thornton is the sixth most populous city in the state of Colorado. The city is situated northeast of Denver.

History

The Thornton area was first inhabited by American Indians such as the Arapahoe. Settlers later arrived to farm the land in the late 19th century. In 1953, Thornton was incorporated as a city covering only 2 square miles.

Rapid suburban development occurred from the 1970s through the 1990s as Denver expanded. Farms and rural areas quickly gave way to housing, retail centers, and infrastructure to accommodate growth.

Economy and Attractions

Major economic drivers include:

• Numerous shopping centers like Thornton Town Center
• Major healthcare networks such as North Suburban Medical Center
• Agricultural processing and manufacturing facilities
• Adams County Fairgrounds and Regional Park

Parks and open spaces like Margaret Carpenter Recreation Center provide recreation like baseball fields, a golf course, and swimming pools.

Demographics

Thornton residents are predominantly white and Hispanic or Latino. However, Thornton has large African American and Asian American communities as well. About 22% of residents are foreign-born.

Overall, Thornton offers diversity and economic opportunity convenient to Denver but with a more suburban community feel.

Quick Facts about Thornton

Population :	148,113 (2020)
Country :	United States of America
State :	Colorado (United States)
County :	Adams County
Water as percent of area :	3.08%
Land as percent of area :	96.92%
Altitude :	5,351 feet / 1631 meters
Establishment :	June 06, 1956 (69 years ago)
Time Zone :	Mountain Time Zone
Local time :	14:00:26 (11th January 2026)
Postal code :	80241
Population growth :	19.81% (2010-2020)

Thornton CO welcome sign IMG 5209 image

Geography

Thornton is located at 39°52'5"N 104°58'19"W (39.8680400, -104.9719200).

Thornton map

Click "full screen" icon to open full mode. View satellite images

Official website of Thornton

• Official Website

Demographics

The population of Thornton increased by 19.81% in 10 years.

Population by years (2010 - 2020)

Year	Population	% Change	Method
2010	118,772	-	census
2011	121,911	2.57%	estimation process
2012	124,361	1.97%	estimation process
2013	127,022	2.09%	estimation process
2014	129,479	1.9%	estimation process
2015	132,176	2.04%	estimation process
2016	134,574	1.78%	estimation process
2017	136,777	1.61%	estimation process
2018	139,352	1.85%	estimation process
2019	141,464	1.49%	estimation process
2020	148,113	4.49%	estimation process

What is ZIP code for Thornton

Thornton zip code is 80241. County name: Adams, County fips: 08001

Alternate Unofficial Names for Thornton

Sorton, Thornton, Tornton, Torntun, sang dun, sonton, swrntwn klradw, tharnatana, thwrntwn, twrntwn, Сортон, Торнтон, Торнтън, תורנטון, تھورن ٹن، کولوراڈو, ثورنتون, سورنتون، کلرادو, थर्नटन, ソーントン, 桑頓

Other Places in Thornton

1 Thornton City Hall

Rating: 5 (1)

9500 Civic Center Dr, Thornton, CO 80229 ➦ Show Map

☎ +13035387517 🔗 Url

People born in Thornton (10)

People born in Thornton, including artist John Balistreri, National Women's Soccer League defender and former US national team member Nikki Marshall, boxer Adrian Mora, .

List

• Edward Casso (American politician) he was born in 03/03/1948
• Kyle Sleeth (American baseball player) he was born in 20/12/1981
• Josh Bredl (American professional wrestler) he was born in 28/01/1991
• Logan Hitzeman (American soccer player) he was born in 02/06/2001
• Abraham Rodriguez (soccer player) he was born in 19/06/2002
• Billy Gonzales (American football player and coach) he was born in 18/07/1971
• Clint Baumstark (American soccer player) he was born in 09/01/1983

Schools in Thornton

College & universities near Thornton, CO

Code	Name	City	ZIP
127787	Altierus Career College-Thornton	Thornton (CO)	80229-4339
404912	Pima Medical Institute-Denver	Denver (CO)	80221
454847	National Beauty College	Denver (CO)	80221
128337	Empire Beauty School-Thornton	Thornton (CO)	80233
482440	DeVry University-Colorado	Westminster (CO)	80234

Stations (12)

Amtrak & bus stations near Thornton, CO

Code	Name	Address	Type
DEB	Denver (Bus Station), Colorado	1055 19th Street	BUS
DEN	Union Station	1701 Wynkoop Street	RAIL
BLD	Boulder, Colorado	30th & Diagonal Highway	BUS
LGM	Longmont, Colorado	623 Main St.	BUS
PJT	Pine Junction, CO	76 Mount Evans Boulevard	BUS

Post Office

Post offices near Thornton

Post Office Name	City	ZIP
Thornton Post Office	Thornton (CO)	80229
Northview Post Office	Northglenn (CO)	80234
Dupon Post Office	Commerce City (CO)	80022
North Post Office	Denver (CO)	80221
Northglenn Post Office	Northglenn (CO)	80233

Other places with the same name (6)

• Thornton , New Hampshire town in Grafton County, New Hampshire, United States with a population of 2,553 people.
• Thornton , Illinois village in Cook County, Illinois, USA with a population of 2,367 people.
• Thornton , Texas town in Limestone County, Texas with a population of 524 people.
• Thornton , Iowa human settlement in Cerro Gordo County, Iowa, United States of America with a population of 401 people.
• Thornton , Arkansas city in Calhoun County, Arkansas, United States with a population of 375 people.

Other cities in Adams County

Cities, towns, neighborhoods & other populated places in Adams County , CO.

City Name	Population	Title
Aurora	387,377	The third most populous city in Colorado and the center of the Denver metropolitan area.
Westminster	115,046	The most populous city in Adams County, Colorado.
Commerce City	60,336	The most populous city in Adams County, Colorado.
Brighton	40,783	A city in Adams County, Colorado.
Northglenn	38,845	City in Colorado
Sherrelwood	18,287	Census-designated place in Adams County, Colorado
Welby	14,846	Census-designated place in Colorado
Lone Tree	13,614	City in Douglas County, Colorado, United States of America
Federal Heights	13,598	City in Adams County, Colorado, United States
Berkley	11,207	Census designated place
Twin Lakes	6,101	City in Freeborn County, Minnesota, United States of America
Todd Creek	3,768	Census-designated place in Adams County, Colorado
Bennett	3,017	Town in Colorado

Distance to Other Cities

Thornton distances to largest Colorado cities

• Denver
• Colorado Springs
• Aurora
• Fort Collins
• Lakewood
• Arvada
• Westminster
• Pueblo
• Centennial
• Greeley
• Boulder
• Longmont
• Loveland
• Broomfield
• Castle Rock
• Grand Junction
• Commerce City
• Parker

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