SF Halloween Party for Single Professionals, 21-49 is a costume party at ERIA Marina in San Francisco, CA, on Saturday, October 31 from 9 PM to 10 PM. That's on Halloween itself. Costumes are part of the fun. It is listed as family-friendly. San Francisco has 75 other Halloween events within three days of this one.
Saturday, October 31 · 9 PM – 10 PM
UTC-07:00ERIA Marina | San Francisco, CA
Prepare for a night of wicked beats, dark waters, and pulse-pounding energy at an exciting new venue in the heart of San Francisco’s Marina District! A live DJ will be spinning high-tempo tracks to keep the energy electric from the first beat at 9:00 pm until the final track at 1:30 AM. Halloween the right way. Meet new friends, 21-49.
WHEN: Saturday, October 31, 9:00 PM – 1:30 AM
WHERE: Eria Marina, 2300 Chestnut St, San Francisco, CA 94123
DISCOUNT TICKETS at www.thepartyhotline.com.
CO-SPONSORED by The Society of Single Professionals, Singles Bay Area, and dozens of singles organizations and meetups. All events benefit The Seva Foundation, to restore sight to the blind.
MORE PARTIES at www.thepartyhotline.com.
· Salsa Saturday! All ages, Oct 17, Novato
· Single and Ready to Mingle, 50+, Oct 18, Tiburon
· Asian Singles & Those Who Love Them, all ages, Oct 18, Los Gatos
· Peninsula Speed Dating for 30s/40s, Oct 25, South San Francisco
· Rooftop Party at Spectacular Hotel, 40+, Oct 25, Napa
· Fresh Start Social, adults of all ages, Oct 29, San Francisco
· Halloween Party, 21-49, Oct 31, San Francisco
· Halloween Party, 50+, Oct 31, Mill Valley
· Halloween Party, adults of all ages, Oct 31, Sunnyvale
· Peninsula 50+ Mixer, Nov 1, Burlingame
· Sonoma Wine Country Tasting & Party, 40+, Nov 5, Windsor
· Silicon Valley Speed Dating, 40s/50s, Nov 11, Palo Alto
· Asian Singles & Those Who Love Them, adults of all ages, Nov 15, Newark/Fremont
· Holiday Speed Dating, 30s/40s, Dec 2, San Jose
· Marin Christmas Mixer, 40+, Dec 13, Tiburon
· Silicon Valley Christmas Mixer, 50+, Dec 15, Campbell
· Hispanic Singles & Those Who Love Them, adults of all age, Jan 7, SF
· Silicon Valley Christmas Mixer, 50+, Dec 15, Campbell
ERIA Marina, 2300 Chestnut St, San Francisco, CA 94123, United States
Society of Single Professionals
It is on Saturday, October 31, 2026, from 9 PM to 10 PM, on Halloween itself.
It takes place at ERIA Marina, 2300 Chestnut St, San Francisco, CA 94123, United States.
Yes, it is listed as a family-friendly Halloween event.
Yes, costumes are encouraged.
It runs for about 1 hours, from 9 PM to 10 PM.
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