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About the San Francisco Bay Chapter

The San Francisco Bay Chapter is home to the 40,000 Sierra Club members in Alameda, Contra Costa, Marin, and San Francisco.

The Sierra Club is a volunter-based organization with regional chapters throughout the United States and Canada. The Bay Chapter is comprised of eight local groups within the four counties; each group being led by volunteer members. The current volunteer leadership roster can be found here.

The Bay Chapter depends on volunteers. It is our volunteers that make it happen. They achieve fantastic results and are always looking for new patners. Please send in our volunteer form and join people like yourself who believe in clean air, clean water and a healthy environment for the Bay Area.

The Bay Chapter enjoys some of the best hikes, events and outings in the country. Our Calendar of Activities is certain to have many items of interest to you. For the types of activities available, please visit our page describing our activities sections.

Chapter office
2530 San Pablo Av. Suite I
Berkeley, CA 94702-2000
Phone: 510-848-0800
Fax: 510-848-3383
Located one block South of Dwight Way in the Ecology Center building
Public Transit: AC Transit #9, #72, 72M, and 72R
Office Hours: 10 am - 5 pm, Monday - Thursday, Friday, 10 am - 2 pm (closed weekends)
To contact an individual staff member, please visit our Staff page.
For questions or comments

Sierra Club National Headquarters
For national conservation policy, change of membership information, and national publications, contact Sierra Club national headquarters.
85 Second St., Second Floor
San Francisco, CA 94105
(415) 977-5500
Member Services (415) 977-5653 or
Web site: www.sierraclub.org