CountryStateCity
Geographic Encyclopedia
APIExport
Home
Home
Countries
United States
Colorado
Back to United States

Colorado

CO

Colorado • state of United States

Cities
289
Population
5,957,493
Timezone
America/Denver
ISO Code
US-CO
State Code
CO
ISO Code
US-CO
Timezone
America/Denver
Coordinates
38.73°, -105.61°
Native Name
Colorado
WikipediaGoogle Maps

Cities (50)

El Paso County

866K

Denver

716K

Denver County

716K

Arapahoe

655K

Colorado Springs

479K

Aurora

359K

Larimer

359K

Boulder County

331K

Weld

329K

Washington County

209K

Fort Collins

170K

Pueblo County

168K

Mesa

156K

Lakewood

153K

Thornton

133K

Arvada

124K

Westminster

116K

Pueblo

112K

Centennial

110K

Greeley

109K

Boulder

107K

Longmont

99K

Highlands Ranch

97K

Lincoln County

87K

Broomfield County

77K

Loveland

76K

Broomfield

74K

Otero

68K

Grand Junction

66K

Commerce City

62K

Eagle County

56K

La Plata

56K

Castle Rock

56K

Parker

50K

Littleton

46K

Douglas County

43K

Montrose County

43K

Summit

42K

Southglenn

42K

Brighton

40K

Fremont

39K

Northglenn

38K

Englewood

34K

Jefferson County

33K

Security-Widefield

33K

Ken Caryl

32K

Wheat Ridge

32K

Delta County

31K

Fountain

30K

Pueblo West

30K
CountryStateCity
Geographic Encyclopedia

Comprehensive geographic data for 250+ countries, 5,038+ states, and 151K++ cities worldwide.

Quick Links

  • Home
  • Countries
  • FAQ
  • Contact

Explore Regions

  • Africa
  • Americas
  • Asia
  • Europe
  • Oceania

Tools & Services

  • API Service
  • Export Tool
  • Update Tool
  • NPM Package
  • Documentation
  • Demo Database

Resources

  • Terms of Service
  • Privacy Policy
  • Status Page

Build with Our Data

Access our comprehensive geographic database through our REST API or download the complete dataset in your preferred format.

API ServiceExport Tool

© 2025 CountryStateCity.org. All rights reserved.

Made with for geography enthusiasts