Mac’s Masquerade Halloween Costume Party

Mac’s Masquerade Halloween Costume Party with 3 DJs, immersive lights, powerful sound, cocktails and one unforgettable night in Fairfax. Mac’s Masquerade is taking over Mac’s at 19 Broadway for a Halloween costume party built for one unforgettable night in Fairfax. Come dressed up, bring your friends and step into a night of DJs, dancing, immersive visuals, powerful sound and the signature Mac’s atmosphere. WHAT TO EXPECT 3 DJs — one epic night An all-new immersive light show The Mack Truck ground-shaking sound system Amazing cocktails A late-night party atmosphere The Mac’s crew and the kind of room that makes Halloween feel like a real event Whether you're looking for a Halloween costume party in Fairfax, a Halloween night out in Marin County, or simply a place to dance and celebrate with friends, Mac’s Masquerade is built for the occasion. EVENT DETAILS Saturday, October 31, 2026 The party starts at 7:30 PM (Pacific time) Mac’s at 19 Broadway 19 Broadway Fairfax, CA 94930 21+ TICKETS Early Bird: $15 Get your costume ready and join us for Halloween at Mac’s. Three DJs. Immersive lights. Big sound. Great cocktails. One night. One masquerade. One Halloween at Mac’s.