Free events in Castro Valley, CA

Search for something you love or check out popular events in your area.

Almost full
Walnut Creek Career Fair
Mon, Mar 16, 9:30 AM
Walnut Creek · Hilton
Almost full
Walnut Creek Career Fair
Mon, Mar 16, 9:30 AM
Walnut Creek · Hilton
Almost full
Oakland Hiring Event
Tue, Mar 17, 9:30 AM
Oakland · Hilton
Almost full
Oakland Hiring Event
Tue, Mar 17, 9:30 AM
Oakland · Hilton
2026 Spring Job & Apprenticeship Fair - Job Seeker Registration
Wed, Mar 11, 3:00 PM
Pleasanton · Tri-Valley Career Center
2026 Spring Job & Apprenticeship Fair - Job Seeker Registration
Wed, Mar 11, 3:00 PM
Pleasanton · Tri-Valley Career Center
Almost full
Leading Scientific Innovation: A conversation with Dr. Kimberly Budil
Tomorrow at 4:30 PM
Oakland · Northeastern University Oakland
Almost full
Leading Scientific Innovation: A conversation with Dr. Kimberly Budil
Tomorrow at 4:30 PM
Oakland · Northeastern University Oakland
Almost full
Practical AI for Teams and Small Businesses
Tomorrow at 5:30 PM
San Leandro · Cuento Studio
Almost full
Practical AI for Teams and Small Businesses
Tomorrow at 5:30 PM
San Leandro · Cuento Studio
Almost full
Walnut Creek Career Fair
Mon, Mar 16, 9:30 AM
Walnut Creek · Hilton
Almost full
Walnut Creek Career Fair
Mon, Mar 16, 9:30 AM
Walnut Creek · Hilton
Almost full
BICS Ugadi Mela 2026
Sat, Mar 21, 10:30 AM
Dublin · Cottonwood Creek K-8 School
Almost full
BICS Ugadi Mela 2026
Sat, Mar 21, 10:30 AM
Dublin · Cottonwood Creek K-8 School
Sales end soon
East Bay Camp & School Fair - FREE THIS SATURDAY in Fremont
Saturday at 11:00 AM
Fremont · Thornton Middle School
Sales end soon
East Bay Camp & School Fair - FREE THIS SATURDAY in Fremont
Saturday at 11:00 AM
Fremont · Thornton Middle School
Going fast
Alameda Little League 2026 Umpire Training
Sunday at 8:30 AM
Alameda · Alameda Little League Fields
Going fast
Alameda Little League 2026 Umpire Training
Sunday at 8:30 AM
Alameda · Alameda Little League Fields
Sales end soon
West Coast Makers FOODIE FEST
Saturday at 12:00 PM
Hayward · Chabot College
Sales end soon
West Coast Makers FOODIE FEST
Saturday at 12:00 PM
Hayward · Chabot College
Almost full
Vincentian Lenten Retreat 2026
Saturday at 9:00 AM
Danville · St. Isidore Hospitality Center
Almost full
Vincentian Lenten Retreat 2026
Saturday at 9:00 AM
Danville · St. Isidore Hospitality Center
Almost full
Oakland Career Fair
Tue, Mar 17, 9:30 AM
Oakland · Hilton
Almost full
Oakland Career Fair
Tue, Mar 17, 9:30 AM
Oakland · Hilton
Almost full
Oakland Career Fair
Tue, Mar 17, 9:30 AM
Oakland · Oakland Downtown
Almost full
Oakland Career Fair
Tue, Mar 17, 9:30 AM
Oakland · Oakland Downtown
Almost full
Leadership Lab
Union City · Southland Industries
Almost full
Leadership Lab
Union City · Southland Industries
Sales end soon
Keep Hayward Clean & Green 02/28/26 Neighborhood Cleanup
Saturday at 8:00 AM
Hayward · Longwood Elementary School
Sales end soon
Keep Hayward Clean & Green 02/28/26 Neighborhood Cleanup
Saturday at 8:00 AM
Hayward · Longwood Elementary School
KATE SCHATZ at Books Inc. Alameda
Thu, Mar 5, 6:30 PM
Alameda · Books Inc.
KATE SCHATZ at Books Inc. Alameda
Thu, Mar 5, 6:30 PM
Alameda · Books Inc.
Almost full
Oakland Ballers "Lil Ballers" Youth Program
Sunday at 8:30 AM
Oakland · 1689 20th St
Almost full
Oakland Ballers "Lil Ballers" Youth Program
Sunday at 8:30 AM
Oakland · 1689 20th St
Almost full
Rakestraw Books presents Drew Daywalt
Friday at 5:00 PM
Danville · Rakestraw Books
Almost full
Rakestraw Books presents Drew Daywalt
Friday at 5:00 PM
Danville · Rakestraw Books
Almost full
Culture at the Core: A Black Blueprint for Oakland
Saturday at 11:00 AM
Oakland · Oakland Museum of California
Almost full
Culture at the Core: A Black Blueprint for Oakland
Saturday at 11:00 AM
Oakland · Oakland Museum of California
CSUEB Alameda County District Attorney Debate
Wed, Mar 18, 3:00 PM
Hayward · South University Union, Cal State East Bay
CSUEB Alameda County District Attorney Debate
Wed, Mar 18, 3:00 PM
Hayward · South University Union, Cal State East Bay

Trends in Castro Valley

Explore more trends

Frequently asked questions about Castro Valley

What are the best free events to attend?

According to Eventbrite, the best free events are:

Walnut Creek Career Fair

Oakland Hiring Event

2026 Spring Job & Apprenticeship Fair - Job Seeker Registration

Walnut Creek Career Fair

Which events are currently trending in Castro Valley?

The trending searches this month in Castro Valley are:

Which free events are coming up?

Discover the best free events happening soon – you don’t want to miss them:

Leading Scientific Innovation: A conversation with Dr. Kimberly Budil

Practical AI for Teams and Small Businesses

Rakestraw Books presents Drew Daywalt

Keep Hayward Clean & Green 02/28/26 Neighborhood Cleanup

Walnut Creek Career Fair

Walnut Creek Career Fair

Oakland Hiring Event

Oakland Hiring Event

2026 Spring Job & Apprenticeship Fair - Job Seeker Registration

2026 Spring Job & Apprenticeship Fair - Job Seeker Registration

Leading Scientific Innovation: A conversation with Dr. Kimberly Budil

Leading Scientific Innovation: A conversation with Dr. Kimberly Budil

Practical AI for Teams and Small Businesses

Practical AI for Teams and Small Businesses

Walnut Creek Career Fair

Walnut Creek Career Fair

BICS Ugadi Mela 2026

BICS Ugadi Mela 2026

East Bay Camp & School Fair - FREE THIS SATURDAY in Fremont

East Bay Camp & School Fair - FREE THIS SATURDAY in Fremont

Alameda Little League 2026 Umpire Training

Alameda Little League 2026 Umpire Training

West Coast Makers FOODIE FEST

West Coast Makers FOODIE FEST

Vincentian Lenten Retreat 2026

Vincentian Lenten Retreat 2026

Oakland Career Fair

Oakland Career Fair

Oakland Career Fair

Oakland Career Fair

Leadership Lab

Leadership Lab

Keep Hayward Clean & Green 02/28/26 Neighborhood Cleanup

Keep Hayward Clean & Green 02/28/26 Neighborhood Cleanup

KATE SCHATZ at Books Inc. Alameda

KATE SCHATZ at Books Inc. Alameda

Oakland Ballers "Lil Ballers" Youth Program

Oakland Ballers "Lil Ballers" Youth Program

Rakestraw Books presents Drew Daywalt

Rakestraw Books presents Drew Daywalt

Culture at the Core: A Black Blueprint for Oakland

Culture at the Core: A Black Blueprint for Oakland

CSUEB Alameda County District Attorney Debate

CSUEB Alameda County District Attorney Debate

Things to do around Castro Valley

Trends in Castro Valley

1. K pop demon hunters

2. San francisco

3. Super bowl

4. Volunteer

5. Crab feed

6. Free events in the bay area

7. American graffiti

8. Valentines day events

9. Trampoline

10. San jose

11. Superbowl

12. Super bowl parties