California State Senate District 9 covers most of the inner East Bay, including all of Oakland, Piedmont, Alameda, Emeryville, Berkeley, Albany, Kensington, El Cerrito, Richmond, San Pablo, El Sobrante, Hercules, Pinole, Rodeo, and part of San Leandro. Map of State Senate District 9: http://wedrawthelines.ca.gov/downloads/meeting_handouts_082011/map_20110815_ap_sd_9_certified.pdf
This seat is currently (Nov 2015) held by Loni Hancock. She was first elected to the seat in 2008 and re-elected in 2012. (https://en.wikipedia.org/wiki/California%27s_9th_State_Senate_district). She is term-limited from seeking re-election in 2012.
Map with California State Senate Districts, including State Senate District 9: http://www.legislature.ca.gov/legislators_and_districts/districts/senatedistricts.html
