RAND California provides a variety of information about the state of California.
California Statistics: statistical tables on business and economics, population and demographics, education, health, government finance, and politics and public opinion. Online Library: information and links to publications from leading California public policy and research institutions. California Policy Bulletins: summaries of state government news, published twice monthly (generally on the second and fourth Mondays) when the state legislature is in session and occasionally during other periods.
Social Explorer allows users to visually display demographic data in the U.S. from 1790 through the present at a variety of geographic levels, create reports, maps and animations that can be downloaded.