Halloween Costume Contests in Boulder 2026

31Oct

The Fright Crawl | Boulder's #1 Halloween Bar Crawl 2026 | Sat, Oct 31

TBA

31 Oct 2026

USD 8 TO 82

31Oct

The Fright Crawl | Boulder Halloween Day Bar Crawl 2026 | Sat, Oct 31

TBA

31 Oct 2026

USD 8 TO 71

31Oct

6th Annual Motown Haunted Prom - Halloween Dance Party

Roots Music Project

31 Oct 2026

USD 0 TO 222

20Oct

Boulder County Trunk or Treat

Boulder County Sheriff's Office

20 Oct 2026

FREE

30Oct

Dark Disko

Rosetta Hall

30 Oct 2026

FREE

24Oct

Spooky Cabaret 2026

3022 East Sterling Cir

24 Oct 2026

USD 34

24Oct

Zouk High SATURDAZE: Werewolves Vs Vampires 🐺🧛👻🎃

Boulder Circus Center

24 Oct 2026

29Oct

Halloween Latte Art Throwdown

Boxcar Coffee | Mesa Cafe

29 Oct 2026

USD 0 TO 13

31Oct

Halloween Party | CBAR

921 Pearl St

31 Oct 2026

USD 35

30Oct

WITCHES R.I.S.E. HALLOWEEN POTLUCK + DANCE PARTY with Women R.I.S.E

Boulder, Colorado

30 Oct 2026

31Oct

Convergence 20: The Dungeon Crawler's Ball

1543 Pearl St, Boulder, CO 80302-5408, United States

31 Oct 2026

24Oct

BOULDER BOO BASH

The Church of Jesus Christ of Latter-day Saints

24 Oct 2026

FREE

27Oct

Halloween Skate Party

Avalon Ballroom

27 Oct 2026

24Oct

Fright Flight

Pleasant View Fields

24 Oct 2026

29Jan

The Luminary Masquerade: Act II — Elevate

Rembrandt Yard

29 Jan 2027

USD 205 TO 322