Longmont Museum Raises $10.2 Million for Expansion

The museum's capital campaign exceeded its initial $8.1 million goal to meet community needs.

Published on Feb. 28, 2026

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The Longmont Museum has raised $10.2 million through a capital campaign launched in 2023 to expand its building. The campaign initially aimed to raise $8.1 million but expanded its target to meet the needs of the community. More than 450 individuals, foundations, and corporations supported the campaign over its two-year duration.

Why it matters

The museum expansion will bring new features like a children's gallery, larger art exhibit space, and a permanent history gallery, helping the Longmont Museum better serve the community's cultural needs. The project also redeveloped the outdoor Stewart Family Courtyard, adding a new stage and more event space.

The details

Construction is ongoing and the expanded museum is scheduled to open in October 2026. While the galleries and exhibits are currently closed, the museum's many programs, including art classes, camps, films, concerts, talks, and historic tours, continue uninterrupted.

  • The capital campaign was launched in 2023.
  • The Stewart Family Courtyard redevelopment opened in summer 2025.
  • The expanded museum is scheduled to open in October 2026.

The players

Longmont Museum

A center for culture in Northern Colorado where people of all ages explore history, experience art, and discover new ideas through dynamic programs, exhibitions and events.

Erik Mason

The Museum Director.

Stewart Family Foundation

A key contributor to the museum's expansion, donating more than $6 million.

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What they’re saying

“Grateful doesn't even begin to cover how we feel to be at this moment in our fundraising and to call our capital campaign complete. Our heartfelt thanks go out to every one of the people who made a contribution toward the future of the Museum.”

— Erik Mason, Museum Director (yellowscene.com)

“I want to extend a special thank you to the Stewart Family Foundation, whose vision and commitment early in this project helped ensure its success. Your belief in what the Longmont Museum can be for our community has made this bold step forward a reality.”

— Erik Mason, Museum Director (yellowscene.com)

What’s next

The museum continues to fundraise to build the exhibitions for the new galleries. To learn more about the expansion or get involved, visit supportlongmontmuseum.org.

The takeaway

The Longmont Museum's successful $10.2 million capital campaign demonstrates the community's strong support for expanding the museum's cultural offerings and facilities. The new features, like the children's gallery and larger art exhibit space, will help the museum better serve the needs of Longmont residents.