Sierra Club San Francisco Bay Chapterupdated: July 2014

The San Francisco Bay Chapter is home to the 30,000 Sierra Club members in Alameda, Contra Costa, Marin, and San Francisco Counties. 

The Bay chapter is comprised of eight local groups within the four counties (see map); each group led by volunteer members.

Contact Sierra Club San Francisco Bay Chapter

Virginia Reinhart
Communications Manager
2530 San Pablo Ave.
Suite I
Berkeley, California  94702-2000
Phone: (510) 848-0800
Fax: (510) 848-3383


Service Area

Services provided in:
  • Alameda County, California
  • Contra Costa County, California
  • Marin County, California
  • San Francisco County, California

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