What is the capital of Colorado?

The capital of Colorado is Denver, also known as the Mile High City.

How many people live in Colorado?

Colorado has an estimated population of approximately 5.8 million people, making it the 21st most populous state in the U.S.

What is Colorado known for?

Colorado is known for the Rocky Mountains, world-class skiing, over 50 peaks exceeding 14,000 feet called Fourteeners, and a booming aerospace and technology sector centered around Denver.

Colorado

Q: When was Colorado admitted to the Union?

Colorado was admitted to the Union on August 1, 1876, as the 38th state, exactly 100 years after the signing of the Declaration of Independence, earning it the nickname The Centennial State.

The Centennial State

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Quick Stats

5.8MPopulation

#21Rank

1876Joined

104.1kArea (mi²)

Map

Seal & Motto

"Nil Sine Numine"

Additional Information

AbbreviationCO

Motto Origin

Latin for "Nothing without Providence."

Adopted 1861/1876.

Official WebsiteColorado.gov

Population Growth

Overview

Colorado, the "Centennial State," is a majestic Western U.S. state defined by the soaring peaks of the Rocky Mountains and the expansive high plains. Renowned globally for its world-class skiing, mountain biking, and vibrant outdoor culture, it is a leading center for aerospace technology, renewable energy, and craft brewing today.

Historical Significance

Colorado officially joined the Union on August 1, 1876, exactly 100 years after the signing of the Declaration of Independence. Its early historical era was defined by the drama of the Pike's Peak Gold Rush and the subsequent rise of massive mining empires, which transformed the region from a rugged frontier into a pivotal industrial and transport hub.

Top Cities & Hubs

Denver

Population: ~715,000

The "Mile High City," a booming metropolitan hub and state capital located exactly one mile above sea level, famed for its mountain views and world-class museum and dining sectors.

Colorado Springs

Population: ~485,000

Located at the base of Pikes Peak, it is a premier center for the U.S. military and aerospace research, home to the Air Force Academy and the iconic Garden of the Gods park.

Aurora

Population: ~395,000

A diverse and rapidly growing city adjacent to Denver, known for its extensive public park systems and the massive Anschutz Medical Campus research facility.

Fort Collins

Population: ~170,000

Home to Colorado State University, this thriving northern city is a world-renowned leader in the craft brewing industry and is frequently ranked as one of the best places to live.

Lakewood

Population: ~160,000

A significant gateway to the Rocky Mountains, offering a unique blend of urban amenities and immediate access to massive mountain parks and the Red Rocks Amphitheatre area.

Neighbors

Region: West

Capital: Denver

Key Landmarks & Economy

Rocky Mountain National Park: One of the nation's most visited parks, featuring the highest paved road in the U.S. and over 350 miles of spectacular alpine trails.

Red Rocks Amphitheatre: A world-famous open-air music venue naturally carved out of prehistoric sandstone monoliths, offering perfect acoustics and breathtaking views.

Aerospace Sector: Colorado has the nation's second-largest aerospace economy, serving as a massive hub for satellite manufacturing and space research.

Did You Know?

Colorado has more than 50 mountain peaks that exceed 14,000 feet in elevation, famously known by locals as "Fourteeners."
Denver receives over 300 days of sunshine per year, more annual sunshine than even Miami or San Diego.
The cheeseburger was reportedly trademarked in Denver in 1935 by Louis Ballast at his Humpty Dumpty Drive-In.