Halloween Costume Contests in Riverside 2025

Explore The Best Of Pumpkin Costume Parties & Events in Riverside

American Legion Post 289 Halloween Party

4151 Buchanan Street, Riverside, CA, USA 31 Oct 2025
FREE

Halloween Party at The Hideaway Riverside!

The Hideaway Cafe & Lounge 31 Oct 2025
USD 13

Halloween Costume Speed Dating!

Killer Queens Social House 30 Oct 2025
USD 45

Harley Halloween

7688 Indiana Ave, Riverside, CA, United States, California 92504 31 Oct 2025