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Los Alamos MainStreet hosts several major community events in downtown Los Alamos. We believe that community-building events lead to better quality of life for the entire community. All events are FREE to the public.


Los Alamos ScienceFest 

July 12-16th, 2024

ScienceFest features a week of interactive activities, competitions, speakers, tours, and exhibits to engage the public in Science, Technology, Engineering, Art and Math (STEAM) topics. Participate in the featured "Discovery Day" event at Ashley Pond Park - fun for all ages with STEAM booths, live music, food vendors and more! 


Tuesdays @ the Square
Every Tuesday in June and July
Presented by Los Alamos MainStreet and Creative District and sponsored by Zia Credit Union, Tuesdays at the Square (formerly at Ashley Pond) is gearing up for a rocking summer.

This year from 6-8 pm, Tuesdays will be activating the Central Park Square lawn next to Boese Bros with six Tuesday evenings of live music, spanning rock, jazz, blues, and more.

In addition to live music, there will be pop-up science fun
, a beer garden, and opportunities for picnicking and art-making. 


Small Business Saturday 2024
November 30
Sign up to participate in the Blue Bucks Promotion
and Small Business Saturday!


Day of Arts and Culture
October 5, 2024
The Day of Arts & Culture on Oct 5, organized by Los Alamos MainStreet in collaboration with the Los Alamos Arts Center kicks off the National Month of Arts and Humanities. 


October 25-27, 2024
Halloweekend is typically anchored by Trick-or-Treat on MainStreet, a wildly popular event that turns Central Avenue into a ghoulish pedestrian area! 


Los Alamos WinterFest
December 6-8, 2024
WinterFest Weekend celebrates winter in Los Alamos. A host of businesses and organizations schedule events including ballets, bazaars, shows, and sales. The weekend is highlighted by the Holiday Lights Parade and the lighting of the tree at Ashley Pond.

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Other events by our partners
Check out more information about events organized within the community by our local partners! 

Support the Community by Sponsoring an Event

Join our family of sponsors that are contributing to building the

community of Los Alamos.


Contact or

call 505-661-4844

for a current Sponsorship Packet.


Los Alamos MainStreet is a volunteer driven organization. Following the best practices as established by the National Trust for Historic Preservation, we have standing committees that implement all our projects. We invite you to join our volunteer corps, a wonderful group of individuals, students and community leaders. Meet new friends, try out new skills and have fun as you help support the MainStreet District. Opportunities range from volunteering for specific events to joining one of our Creative District committees.

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