Guide · June 10, 2026
Colorado’s 150th Birthday: The Complete Denver Guide to August 1, 2026
Colorado turns 150 on Saturday, August 1, 2026. Here is everything actually happening for the sesquicentennial in and around Denver, from the Capitol ceremony to the night party at Commons Park, plus drone shows, suburban festivals, and how Colorado Day works.
1. The big one: Highland Bridge Bazaar at Commons Park
Downtown Denver’s main celebration on the birthday itself. DENVER BAZAAR, in partnership with the Downtown Denver Partnership, takes over Commons Park and the Highland Bridge connection with 150+ local makers, 150 themed experiences (a 150-foot community mural, a 150-person yoga class, scavenger hunts, free sample hours), full bars, and live music. Organizers expect 8,000 to 12,000 people. Free to attend and dog friendly. With Civic Center Park closed for construction this year, this is the downtown gathering point for the sesquicentennial.
2. Colorado Day at the State Capitol
The official civic ceremony runs the morning of August 1 at the Capitol: speeches, the Mile High Marker rededication, birthday cake at 11 AM, LEGO sculptures of the House and Senate chambers, and new art dedications. It wraps by roughly 1:30 PM, which makes a Capitol-morning, Commons-Park-afternoon double-header the natural full-day plan.
3. Stories in the Sky drone shows
The America 250 - Colorado 150 Commission’s signature program is putting roughly 150 community drone shows across the state through 2026, including a post-game show at Coors Field on August 1 after the Rockies game. If you have never seen a synchronized drone show, the birthday weekend is the time.
4. Mile High 150 Expo in Broomfield
An aviation-themed festival at Rocky Mountain Metropolitan Airport: air and drone shows, live music, and fireworks, with a VIP gala on July 31. The biggest suburban production of the weekend.
5. Colorado 150 Celebration in Highlands Ranch
Highlands Ranch Town Center hosts a one-day festival with era-themed live music from bluegrass to jazz, plus food and drink. A solid south-metro option if you are not heading downtown.
6. Beyond the metro
Colorado Springs marks Colorado Day at the Pioneers Museum with live music, food trucks, and cake. Grand Junction held its US250/CO150 concert in late July. History Colorado Center’s 38th Star exhibit runs through September 6, and the state’s Historic Marker Program is placing up to 150 new roadside markers through the year.
Quick answers
- When is Colorado’s 150th birthday?
- Saturday, August 1, 2026. Colorado became the 38th state on August 1, 1876, so 2026 is the sesquicentennial. August 1 is celebrated annually as Colorado Day.
- What is happening in Denver for Colorado’s 150th birthday?
- The two main Denver events on August 1, 2026 are the Colorado Day ceremony at the State Capitol in the morning and the Highland Bridge Bazaar, the free birthday celebration at Commons Park with 150+ local makers, themed experiences, bars, and live music, presented by DENVER BAZAAR with the Downtown Denver Partnership. A drone show follows the Rockies game at Coors Field.
- Is the Commons Park 150th birthday party free?
- Yes. The Highland Bridge Bazaar at Commons Park on August 1, 2026 is free to attend and dog friendly. You only pay for food, drinks, and anything you buy from makers.
- Why is there no celebration at Civic Center Park?
- Civic Center Park is closed for construction in 2026, so downtown celebrations have moved. Commons Park hosts the main downtown gathering for the 150th.
- What is the sesquicentennial?
- A 150th anniversary. Colorado’s sesquicentennial coincides with the United States’ 250th (the semiquincentennial), so the official state effort is branded America 250 - Colorado 150.