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State and County Quick Facts: Quickly get state, county, and city demographics (including age, race/ethnicity, income, residence, and education), business information, and much more from the United States Census.

The United States Census Bureau, American Fact Finder: This resource is an expansion of the State and County QuickFacts and is a source for population, housing, economic and geographic information. Some data are available at census tract level.

California Department of Finance: Current population estimates and future projections of population and school enrollment, and census data. 

Economic Factors

Bureau of Economic Analysis: Personal income and employment data down to county level. 

Economic Burden of Chronic Disease in California, UC Merced: This website was developed by UC Merced using data from the Center for Disease Control and Prevention’s (CDC) Chronic Disease Cost Calculator, the California Health Interview Survey (CHIS), and a number of other sources. The website allows users to access estimates of the cost of six chronic diseases by ethnicity, age, gender, county and region.