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find Halloween events for every vibe.

Free events in Boulder, CO

Search for something you love or check out popular events in your area.

Nearly full
Conservation Advocacy
Sat, Oct 25, 9:00 AM
Canterbury Acres · The Avalon Ballroom
Nearly full
Conservation Advocacy
Sat, Oct 25, 9:00 AM
Canterbury Acres · The Avalon Ballroom
Nearly full
Petals & Planning: Build Wealth & Protect Your Family
Sunday at 2:00 PM
Sterling Heights · Louisville Recreation & Senior Center
Nearly full
Petals & Planning: Build Wealth & Protect Your Family
Sunday at 2:00 PM
Sterling Heights · Louisville Recreation & Senior Center
Have You Ever Wondered?
Thu, Nov 20, 6:30 PM
Hillcrest · Network Wellness Center
Have You Ever Wondered?
Thu, Nov 20, 6:30 PM
Hillcrest · Network Wellness Center
Experiencing and Demystifying the Network Wave
Thu, Oct 30, 6:30 PM
Hillcrest · Network Wellness Center
Experiencing and Demystifying the Network Wave
Thu, Oct 30, 6:30 PM
Hillcrest · Network Wellness Center
Community Forum: Louisville's New 24/7 Walk-In Crisis Center
Thu, Oct 30, 4:00 PM
Sterling Heights · 1107 W Century Dr
Community Forum: Louisville's New 24/7 Walk-In Crisis Center
Thu, Oct 30, 4:00 PM
Sterling Heights · 1107 W Century Dr
Selling quickly
Wine, Art & Cheese Night
Tomorrow at 6:30 PM
Hillcrest · Network Wellness Center
Selling quickly
Wine, Art & Cheese Night
Tomorrow at 6:30 PM
Hillcrest · Network Wellness Center
Leadline Office Warming
Wed, Oct 22, 4:30 PM
Grace Mar · 932 Walnut St
Leadline Office Warming
Wed, Oct 22, 4:30 PM
Grace Mar · 932 Walnut St
Selling quickly
Book Launch and Art Exhibit with Jeremy Collins
Today at 6:00 PM
Whittier · Crowd on Pearl
Selling quickly
Book Launch and Art Exhibit with Jeremy Collins
Today at 6:00 PM
Whittier · Crowd on Pearl
Community Appreciation Dinner 2025
Wed, Oct 29, 5:30 PM
Irvington · Confluence Small Business Collective
Community Appreciation Dinner 2025
Wed, Oct 29, 5:30 PM
Irvington · Confluence Small Business Collective
Nearly full
Boulder Green Drinks : Boulder Recycling Center Tour
Tue, Oct 21, 2:30 PM
Lakeside · Boulder County Recycling Center
Nearly full
Boulder Green Drinks : Boulder Recycling Center Tour
Tue, Oct 21, 2:30 PM
Lakeside · Boulder County Recycling Center
The Gut-Brain Connection
Tue, Oct 21, 6:30 PM
Hillcrest · Network Wellness Center
The Gut-Brain Connection
Tue, Oct 21, 6:30 PM
Hillcrest · Network Wellness Center
Boulder County Film Commission Happy Hour at the Dairy Arts Center
Tue, Oct 21, 5:30 PM
Twenty Ninth Street · Dairy Arts Center
Boulder County Film Commission Happy Hour at the Dairy Arts Center
Tue, Oct 21, 5:30 PM
Twenty Ninth Street · Dairy Arts Center
Inside the Tank
Sat, Nov 8, 7:00 PM
Main Campus · ATLAS Institute, University of Colorado Boulder
Inside the Tank
Sat, Nov 8, 7:00 PM
Main Campus · ATLAS Institute, University of Colorado Boulder
Harvest Event- FREE Wellness & Fitness Event
Sat, Oct 25, 1:00 PM
Irvington · Rocky Mountain Pilates & Yoga
Harvest Event- FREE Wellness & Fitness Event
Sat, Oct 25, 1:00 PM
Irvington · Rocky Mountain Pilates & Yoga
Sales end soon
BECC's 10 year celebration
Tomorrow at 4:30 PM
La Placa · 7901 W 120th Ave
Sales end soon
BECC's 10 year celebration
Tomorrow at 4:30 PM
La Placa · 7901 W 120th Ave
Community Movie Screening | Green and Gold
Thu, Oct 23, 6:00 PM
Flatiron Marketplace · 1 Environmental Way
Community Movie Screening | Green and Gold
Thu, Oct 23, 6:00 PM
Flatiron Marketplace · 1 Environmental Way
Tech & Tacos: A Smart Home Open House at ListenUp Boulder
Wed, Oct 22, 5:30 PM
Goss Grove · ListenUp Boulder
Tech & Tacos: A Smart Home Open House at ListenUp Boulder
Wed, Oct 22, 5:30 PM
Goss Grove · ListenUp Boulder
Choice House Halloween Party 2025
Thu, Oct 30, 6:00 PM
Gunbarrel · 6901 Lookout Rd, Boulder, CO, USA
Choice House Halloween Party 2025
Thu, Oct 30, 6:00 PM
Gunbarrel · 6901 Lookout Rd, Boulder, CO, USA
Sales end soon
BNI Apex Alliance Happy Hour
Friday at 4:00 PM
Sterling Heights · Relish Food Hall // Pickleball
Sales end soon
BNI Apex Alliance Happy Hour
Friday at 4:00 PM
Sterling Heights · Relish Food Hall // Pickleball
Selling quickly
Death & Donuts: The Natural Funeral
Sat, Nov 1, 11:00 AM
Irvington · The Natural Funeral
Selling quickly
Death & Donuts: The Natural Funeral
Sat, Nov 1, 11:00 AM
Irvington · The Natural Funeral

Trends in Boulder

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Frequently asked questions about Boulder

What are the best free events to attend?

According to Eventbrite, the best free events are:

Conservation Advocacy

Petals & Planning: Build Wealth & Protect Your Family

Have You Ever Wondered?

Experiencing and Demystifying the Network Wave

Which events are currently trending in Boulder?

The trending searches this month in Boulder are:

halloween event

stand up comedy

halloween parties

speed dating events

Which free events are coming up?

Discover the best free events happening soon – you don't want to miss them:

Book Launch and Art Exhibit with Jeremy Collins

BECC's 10 year celebration

Wine, Art & Cheese Night

BNI Apex Alliance Happy Hour