Hit Enter to Search or X to close
Halloween Costume Parties in Chicago (2026)
These Chicago parties put the costume front and center — several run contests on the night. Here are 7 worth knowing about.
1. Tricks or Cheeks 🫢 Halloween party
Mandatory Halloween Costume Party Date: October 25th , 2026 ⌚Time: 7:00 PM - 1:00 AM Location: MILLIONAIRE MANSION.
Sunday, October 25 · 1645 N Cicero Ave — See details & tickets →
2. Offshore Halloween - 10/30
Celebrate Halloween at Offshore Rooftop with live DJs and sweeping Lake Michigan views.
Friday, October 30 · 1000 E Grand Ave — See details & tickets →
3. Sober October: Chicago Zero Proof Halloween Bar Crawl
No booze, all boos! Join Chicago's zero-proof Halloween crawl with mocktails, costumes, prizes + a FREE after-party.
Saturday, October 10 · 180 N Morgan St — See details & tickets →
4. All Girls Halloween Costume Party @TheMine 👻💜
A Halloween-week fixture on the Chicago calendar — doors open October 16 at 1431 W Lake St.
Friday, October 16 · 1431 W Lake St — See details & tickets →
5. Chaotic Singles SAPPHIC HALLOWEEN Party (Chicago)
Halloween is THE singles holiday so we're going all out...
Friday, October 23 · 2500 W Chicago Ave — See details & tickets →
6. Sin Central: Greystone's Album Anniversary & Costume Party
Celebrate the 1st anniversary of our debut album A Million Grains of Sand with a early Halloween-themed costume party!
Saturday, October 24 · 1200 W 35th St — See details & tickets →
7. Chaotic Singles HALLOWEEN Party (Chicago)
Halloween is THE singles holiday so we're going all out...
Friday, October 30 · 112 W Hubbard St — See details & tickets →
Every Halloween event, one place
New Halloween events go live on Posh every day — Chicago and every other city. The full, always-current lineup lives on the Halloween collection.
Join Our Newsletter
Get a weekly selection of curated articles from our editorial team.