Colorado

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References & Edit History Facts & Stats

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state seal of Colorado

Colorado's state bird is the lark bunting.

The Rocky Mountain columbine is the state flower of Colorado.

map of Colorado

Denver, Colorado: skyline

Colorado features

United States: The northern Mountain region

For Students

Pikes Peak

Colorado summary

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Colorado: Facts & Stats

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

Last Updated: May 30, 2025

News •

US measles cases rise slightly as Colorado reports a new outbreak • May 30, 2025, 3:22 PM ET (AP)

Colorado's governor vetoes landmark ban on rent-setting algorithms • May 30, 2025, 1:02 PM ET (AP)

Man who says far-right content led him to threaten election officials is sentenced to 3 years • May 29, 2025, 7:03 PM ET (AP)

A new award for 'civic bravery' recognizes everyday people who step up • May 21, 2025, 8:17 AM ET (AP)

Loose pet kangaroo keeps police hopping — again — in Colorado • May 20, 2025, 9:30 PM ET (AP)

Facts

Also Known As	Centennial State
Capital	Denver
Population¹	(2020) 5,773,714; (2024 est.) 5,957,493
Governor	Jared Polis (Democrat)
Date Of Admission	August 1, 1876
U.S. Senators	Michael F. Bennet (Democrat) • John Hickenlooper (Democrat)
State Nickname	Centennial State
State Motto	“Nil Sine Numine (Nothing Without Providence)”
State Bird	lark bunting
State Flower	white and lavender columbine
State Song	“Where the Columbines Grow” • “Rocky Mountain High”
Seats In U.S. House Of Representatives	8 of (435)
Time Zone	Mountain (GMT − 7 hours)
Total Area (Sq Km)	269,603
Total Area (Sq Mi)	104,094
¹Excluding military abroad.

Photos and Videos

state seal of Colorado

Colorado's state bird is the lark bunting.

The Rocky Mountain columbine is the state flower of Colorado.

map of Colorado

Denver, Colorado: skyline

Colorado features

United States: The northern Mountain region

Discover Colorado's history, people who lived there, and the Colorado Historical Society

See All Videos and Images →

Topics

John Hickenlooper Florence Rena Sabin Edward Prentiss Costigan John Evans United States U.S. state Denver NORAD Colorado Springs Boulder California New York Hawaii Texas Washington Alaska Florida Massachusetts New Jersey Virginia

John Hickenlooper

John Hickenlooper

United States senator

Florence Sabin, c. 1915.

Florence Rena Sabin

American anatomist

Costigan, Edward Prentiss

Edward Prentiss Costigan

American politician

John Evans

United States government official, educator, and physician

United States

Denver

Denver

Colorado, United States

Colorado Springs, Colorado

Colorado Springs

Colorado, United States

Boulder

Boulder

Colorado, United States

map of Colorado gold regions in 1862

Central City

Colorado, United States

Canon City

Canon City

Colorado, United States

Map showing the location of Aspen within Colorado.

Aspen

Colorado, United States

Leadville

Leadville

Colorado, United States

Grand Junction: city hall

Grand Junction

Colorado, United States

Georgetown

Georgetown

Colorado, United States

Littleton, Colorado

Littleton

Colorado, United States

Cortez

Colorado, United States

Durango

Colorado, United States

Aurora: Anschutz Medical Campus

Aurora

Colorado, United States

Cripple Creek

Cripple Creek

Colorado, United States

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