top of page
Header Events.jpg

More People Downtown, More of the Time

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 7-18, 2023

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! 


Fair & Rodeo Parade

August 11-13, 2023

The Los Alamos County Fair and Rodeo is a 3-day event. The theme for this year's parade "Harnessing Chaos". The public is encouraged to come downtown to enjoy the Arts & Crafts Fair and Rodeo Parade. The Cowboy Dinner & Dance takes place at the Posse Lodge and the Rodeo at the Brewer Arena, both on North Mesa. 



October 27-29, 2023

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

Holiday Lights Parade

December 1-3, 2023

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.

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.

bottom of page