Portola Branch Library 2450 San Bruno Ave San Francisco, CA 94134 Phone : (415) 355-5660 Business Category Libraries S F City & County--libraries, Branches, Portola Branch Library 2450 San Bruno Ave San Francisco, CA 94134 Phone : (415) 355-5660 Business Category Government Offices-City Village & Twp Libraries Government Offices State & Local Government Offices & Public Schools