As Colorado approaches its monumental 150th anniversary on August 1, 2026, the air is filled with anticipation and excitement. This sesquicentennial marks a significant milestone in the state’s rich and vibrant history, serving as a time for reflection and celebration. This historic occasion also ties into the broader celebration of the United States semiquincentennial on July 4, 2026, amplifying the sense of national pride and unity.

 

Understanding the Milestone

 

What is a sesquicentennial?

Rainbow in Colorado National Monument

A sesquicentennial commemorates the 150th anniversary of an important event such as Colorado's statehood. This milestone is more than just a number; it signifies Colorado's enduring legacy and contributions to American history. From its breathtaking landscapes to its pioneering spirit, Colorado's place in U.S. history is unique and profound.

 

When is Colorado’s birthday?

Colorado was admitted to the Union on August 1, 1876, making it the Centennial State. It joined the nation 100 years after the Declaration of Independence. Colorado Day, the state’s birthday, is recognized annually as a reminder of its achievements over the years and its integral role in the development of the American West.

 

How is the sesquicentennial connected to the United States semiquincentennial?

American Flag Waving Above the Grand Junction Area on the Book Cliffs

The United States' semiquincentennial, which will also take place in 2026, will celebrate 250 years of American independence. Colorado's sesquicentennial follows shortly after this nationwide celebration, highlighting the state’s contributions to the national story and the collective journey of the United States.

 

How to Participate in Celebrations

Person Holding a Colorado Flag

The America 250 - Colorado 150 Commission is energizing statewide participation in Colorado's sesquicentennial through a series of initiatives designed to commemorate this historic milestone, celebrate shared heritage and support local communities. These initiatives offer a range of activities, from family fun and educational events to historic preservation efforts, ensuring multiple ways for Coloradans to engage with and celebrate the state's 150th anniversary.

Two girls standing and pointing out across the Colorado National Monument

A central feature of the celebration is the release of commemorative license plates by the Colorado Division of Motor Vehicles. Available until July 2027, these plates allow residents to own a piece of Colorado’s history. The plates' designs were chosen through the Historic Colorado Contest, where Coloradans voted on submissions in two age categories, reflecting the state's creative spirit and collective pride. The license plates cost $8.06 plus local fees and can be purchased through myDMV.Colorado.gov or County Motor Vehicle Offices.

As more sesquicentennial initiatives roll out,  everyone is invited to join the celebrations. These efforts aim to unify the state in reflection, celebration, and anticipation of the future, marking the sesquicentennial as a chance to be part of Colorado's ongoing story.

 

Sesquicentennial Festivities in Grand Junction

Corner of Downtown Grand Junction

Founded in 1882, Grand Junction, Colorado's history is deeply entwined with Colorado's development. Evolving from a hub for fruit farming and mining to a center for outdoor recreation and the arts, Grand Junction has consistently contributed to the state's diversity and resilience.

Man holding camera overlooking the Grand Junction Area

Exploring Grand Junction's landmarks and historical sites provides a deep dive into Colorado's soul. Visit the immersive exhibits at the Museum of the West, showcasing the Ute people, pioneers and miners. Hike among the stunning spires and canyons of the Colorado National Monument, which prominently displays three prehistoric rock layers. Stroll through the charming streets of Historic Downtown, framed by 115 sculptures and murals. Each unique experience tells a story of perseverance, innovation, and community.

 

Celebrate 150 years of Colorado with us!

Three people plein air painting on the Grand Mesa

As we celebrate Colorado’s sesquicentennial, it’s the perfect time to reflect on the state's journey through 150 years of history. This milestone is not just about looking back; it is also about looking forward and envisioning Colorado's future. Participating in the celebrations through statewide initiatives or joining the festivities in Grand Junction is a way to honor the past, celebrate the present and inspire the future.

 

Discover more ways to learn about the local history of Grand Junction on page 39 of the Official Grand Junction Visitor’s Guide.