Population

100,109

US Census estimate, July 2025

Median home value

$572,800

Owner-occupied units

Longmont, CO

Colorado · 40.168° N, 105.101° W · 29 sq mi

Longmont is a city in Colorado, with a population of 100,109 and about 3,419 residents per square mile. The median household earns $90,671 a year, and the median home is worth $572,800.

Conditions

Humidity & wind

—

UV index

—

Sunrise & sunset

—

Local time

—

Size & density

Land area

29 sq mi

Water excluded

Population density

3,419

People per square mile

Rank by population

#358

Of cities on this site

Rank by area

#474

Of cities on this site

Money & housing

Median household income

$90,671

US median ≈ $78,538

Median gross rent

$1,816

Per month

Homeownership

62.5%

US ≈ 65%

Average commute

24.5 min

One way

People

Median age

40.3

US median 39.1

Bachelor's degree +

47%

Age 25 and over

Foreign born

10.1%

Households

42,155

2.33 people each

What people here do for work

Education & health care 21^%

Professional & business services 17.6^%

Manufacturing 13.4^%

Retail trade 12.5^%

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.

Forgotten Flicks movie T-shirts on TeePublic

State of Colorado

State bird

Lark Bunting

State flower

Rocky Mountain Columbine

State capital

Denver

Nickname

The Centennial State

Compare Longmont with

Longmont vs BoulderSide by side
Longmont vs DeltonaSide by side
Longmont vs BroomfieldSide by side
Longmont vs DavenportSide by side
Longmont vs DenverSide by side
Longmont vs Colorado SpringsSide by side

Cities near Longmont

Boulder, CO13 mi · 105,689
Broomfield, CO15 mi · 79,174
Loveland, CO17 mi · 81,387
Thornton, CO19 mi · 147,766
Westminster, CO20 mi · 116,182
Arvada, CO23 mi · 122,901
Greeley, CO24 mi · 115,073
Fort Collins, CO26 mi · 171,500