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Thornton

A city of 144,187 people in Colorado
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Around town

The places and views that make it Thornton

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Outdoors in Thornton

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Map of Thornton: conserved land, trails and the top places to walk
Conserved land11%2,649 of 24,647 acres
Trails38 mi1 mi per sq mi
Parks & preserves8218 conserved acres per 1,000 residents

Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US

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Know Thornton

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About Thornton

Home rule city in Adams and Weld counties, Colorado, United States
1956Established
141,867Population
36.8 sq miArea
5,351 ftElevation

Thornton is a home rule city located in Adams and Weld counties, Colorado, United States. 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. 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-Greeley, CO Combined Statistical Area and the Front Range Urban Corridor.

Official town website ↗

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

Living in Thornton

Housing in Thornton

$492K▼ 2.2% in a year Typical home value · Zillow

The typical Thornton home is worth about $492,000, down 2.2% in a year, 8% below the Colorado typical home.

A seller's market

Buyer’sBalancedSeller’s
Days on market17
Sale-to-list99.7%
Sold in May158
Zillow Home Value Index · Redfin Data CenterHousing market →

Safety in Thornton

C−

Safety Grade C-

Thornton reports more crime per resident than most U.S. towns we grade: about 81% report less. Compared with places its own size, it does better than 50%.

Violent crime per 1,000
Thornton 2.4
Colorado 4.4
U.S. 3.3
Property crime per 1,000
Thornton 22.5
Colorado 22.3
U.S. 15.5
FBI crime data, 2025 · crimes reported to policeCrime & safety →

Health in Thornton

Compared with Colorado

4better than CO·5worse

of 26 measures CDC estimates. The other 17 are too close to call.

BetterToo close to callWorse

What stands out

Care nearby

Centura Health-St. Anthony North Health CampusWestminster · 3.6 mi · ER
Clinica Family Health - ThorntonThornton · 4.6 mi · sliding-scale fees
Primary careShortage · part of Thornton
DentalShortage · part of Thornton
Mental healthShortage · county-wide
CDC PLACES 2025 · modeled estimates for adults · CDC's estimate for Thornton · CMS · HRSAHealth in Thornton →

Schools in Thornton

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B+

School Grade B+

The public schools Thornton’s kids attend, from kindergarten through graduation, outperform 65% of Colorado’s districts on state tests and graduation. Among towns with similar incomes, they sit near the middle.

See how Thornton’s schools compare in CO →
DistrictAdams 12 Five Star SchoolsSchools42

School data from the U.S. Department of Education (NCES, EDFacts). The School Grade is our own summary of state test results and graduation rates, graded within CO. Ratings are from neighbors.

Famous people from ThorntonWriters, athletes, leaders and more who were born in Thornton.Meet them →

How things work in Thornton

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Thornton

Colorado · CO
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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/18 · 2025-01-01