Population

147,766

US Census estimate, July 2025

Median home value

$517,500

Owner-occupied units

Thornton, CO

Colorado · 39.920° N, 104.941° W · 37 sq mi

Thornton is a city in Colorado, with a population of 147,766 and about 4,032 residents per square mile. The median household earns $103,088 a year, and the median home is worth $517,500.

Conditions

Humidity & wind

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UV index

—

Sunrise & sunset

—

Local time

—

Size & density

Land area

37 sq mi

Water excluded

Population density

4,032

People per square mile

Rank by population

#195

Of cities on this site

Rank by area

#364

Of cities on this site

Money & housing

Median household income

$103,088

US median ≈ $78,538

Median gross rent

$1,895

Per month

Homeownership

71.4%

US ≈ 65%

Average commute

30.4 min

One way

People

Median age

34.7

US median 39.1

Bachelor's degree +

32.8%

Age 25 and over

Foreign born

14%

Households

50,566

2.84 people each

What people here do for work

Education & health care 19.1^%

Retail trade 12.1^%

Professional & business services 11.9^%

Construction 9.8^%

Top four industries · share of all workers · ACS 2024

Wealthiest person in Colorado

Name

Philip Anschutz

Forbes, Apr 2025

Net worth

$16.9B

As of 25 Apr 2025 — not live

Lives in

Denver

Source of wealth

Energy, sports, entertainment

Compiled from public reporting, not from an official dataset, and not independently verified.

Largest employer in Colorado · private sector

Employer

UCHealth

Sector

Healthcare

Compiled from public reporting, not from an official dataset, and not independently verified. Government employers are excluded.

Largest public company in Colorado

Company

Arrow Electronics

Revenue

$27.9B

Fiscal year 2024

Headquarters

Centennial

Ticker

ARW

Compiled from public reporting, not from an official dataset, and not independently verified.

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State of Colorado

State bird

Lark Bunting

State flower

Rocky Mountain Columbine

State capital