databases of statistical information
Politics and Elections
UC Berkeley Institute of Governmental Studies
Data on voting, voter registration and the census, on a county, census tract and block level. Compiled by the Statewide Database for use in redistricting.
Data on California state senate, assembly and congressional districts and precincts in KML format that can be used in applications like Google Maps, Google Earth and ArcGIS. Provided by California VoterConnect.
Public Policy Institute of California
Public opinion survey data on political participation and the mood of voters, as well as job approval ratings of elected officials in California, downloadable at the Public Policy Institute website. Check the areas under Government and Political Participation.