East Contra Costa Historical Society

Name: East Contra Costa Historical Society
Address: 3890 Sellers Avenue, Brentwood, CA, 94513, US
Telephone: (925) 634-8651

The East Contra Costa Historical Society operates a seasonal museum, virtual museum, local-history programs, speakers, archives, and docent opportunities. Its official site lists a 2026 season running from April through October.

3890 Sellers Avenue, Brentwood, CA 94513 Saturdays and the third Sunday each month, April–October, 10am–2pm

Explore on Locora Map Website Call (925) 634-8651

Verified 2026-08-24