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find Halloween events for every vibe.

Halloween events in Union, MO

Nearly full
The Ghoul House Pop Up Bar & Haunted Trail on Oct 29th
Cottleville · Public School House
Nearly full
The Ghoul House Pop Up Bar & Haunted Trail on Oct 29th
Cottleville · Public School House
Boo-Tique Bazaar
Fri, Oct 24, 11:00 AM
St. Peters · Mid Rivers Mall Drive
Boo-Tique Bazaar
Fri, Oct 24, 11:00 AM
St. Peters · Mid Rivers Mall Drive
Si & 2Gs Halloween Party "Birthday Edition" Part 2
Sat, Oct 25, 8:00 PM
St. Louis · JC Supper Club
Si & 2Gs Halloween Party "Birthday Edition" Part 2
Sat, Oct 25, 8:00 PM
St. Louis · JC Supper Club
Gatsby's Haunted Mansion Halloween Pop-up Bar
Fri, Oct 31, 7:00 PM + 5 more
Lafayette Square · 2017 Chouteau Ave
Gatsby's Haunted Mansion Halloween Pop-up Bar
Fri, Oct 31, 7:00 PM + 5 more
Lafayette Square · 2017 Chouteau Ave
R&B Grooves & Views: Rooftop with a Slash of Hip Hop HALLOWEEN EDITION
Fri, Oct 31, 8:00 PM
Downtown · Hotel Saint Louis, Autograph Collection
R&B Grooves & Views: Rooftop with a Slash of Hip Hop HALLOWEEN EDITION
Fri, Oct 31, 8:00 PM
Downtown · Hotel Saint Louis, Autograph Collection
Harvest Festival, The Waldorf School of St. Louis
Fri, Oct 17, 4:00 PM
Lake Junction · The Waldorf School of St. Louis
Harvest Festival, The Waldorf School of St. Louis
Fri, Oct 17, 4:00 PM
Lake Junction · The Waldorf School of St. Louis
Scream Smash : The Halloween Party
Fri, Oct 24, 7:30 PM
Forest Park Southeast · 4193 Manchester Ave
Scream Smash : The Halloween Party
Fri, Oct 24, 7:30 PM
Forest Park Southeast · 4193 Manchester Ave
TKE x Sunnen: Car Show for St. Jude
Sun, Oct 19, 11:00 AM
Lake Junction · 7910 Manchester Rd
TKE x Sunnen: Car Show for St. Jude
Sun, Oct 19, 11:00 AM
Lake Junction · 7910 Manchester Rd
Halloween Hustle Old Skool FitFest
Sat, Oct 25, 8:00 AM
Central West End · Move by BJC
Halloween Hustle Old Skool FitFest
Sat, Oct 25, 8:00 AM
Central West End · Move by BJC
Free Flow Fierce and Frightening: Student Showcase
Sat, Nov 1, 6:00 PM
Natural Bridge Junction · Free Flow Fitness
Free Flow Fierce and Frightening: Student Showcase
Sat, Nov 1, 6:00 PM
Natural Bridge Junction · Free Flow Fitness
2025 St. Louis Halloween Bar Crawl
Sat, Nov 1, 4:00 PM
Peabody · Great Grizzly Bear
2025 St. Louis Halloween Bar Crawl
Sat, Nov 1, 4:00 PM
Peabody · Great Grizzly Bear
Haunted Trail ONLY Tickets on Oct 29th
Cottleville · Public School House
Haunted Trail ONLY Tickets on Oct 29th
Cottleville · Public School House
WCSB Presents: Halloween Madness 2
Sat, Oct 25, 6:00 AM
St. Louis · 6100 Emma Ave
WCSB Presents: Halloween Madness 2
Sat, Oct 25, 6:00 AM
St. Louis · 6100 Emma Ave
Halloween & Dia de muertos bash!
Fri, Oct 31, 8:00 PM
Tower Grove South · Padrinos Mexican Restaurant
Halloween & Dia de muertos bash!
Fri, Oct 31, 8:00 PM
Tower Grove South · Padrinos Mexican Restaurant
Saint Charles Market Pumpkin Carving Contest
Sat, Oct 18, 8:00 AM
St. Charles · North Main Street
Saint Charles Market Pumpkin Carving Contest
Sat, Oct 18, 8:00 AM
St. Charles · North Main Street
Halloween Trunk-or-Treat
Wed, Oct 22, 6:30 PM
Troy · 20 Prospect Cir
Halloween Trunk-or-Treat
Wed, Oct 22, 6:30 PM
Troy · 20 Prospect Cir
Haunted Trail ONLY Tickets on Oct 30th
Cottleville · Public School House
Haunted Trail ONLY Tickets on Oct 30th
Cottleville · Public School House
ABV Barrel Shop Darren McRoy Cocktail Class: Hitchcocktails -- Date Night
Sat, Oct 25, 7:00 PM
Maxville · ABV Barrel Shop
ABV Barrel Shop Darren McRoy Cocktail Class: Hitchcocktails -- Date Night
Sat, Oct 25, 7:00 PM
Maxville · ABV Barrel Shop
Haunted Trail ONLY Tickets on Oct 23rd
Cottleville · Public School House
Haunted Trail ONLY Tickets on Oct 23rd
Cottleville · Public School House
C H E M I S T R Y
Fri, Oct 31, 8:00 PM
Midtown · 509 N Garrison Ave
C H E M I S T R Y
Fri, Oct 31, 8:00 PM
Midtown · 509 N Garrison Ave

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