California Health Interview Survey
Offers detailed data on California's population health, including health conditions, health behaviors, mental health, healthcare access, food security, insurance coverage, and detailed demographics. Provides data in multiple formats: Health Profiles, a web-based interactive database that also allows you to download PDFs with county-level data; Public Use Data Files, which are formatted for statistical analysis programs; and AskCHIS and AskCHIS NE, which offer zip code and city-level data in a web-based interactive database and requires free registration.
UCLA Center for Health Policy Research
Access · Behavioral health · County-by-county data · Food security and nutrition · Health conditions · Health insurance · Population health · Racial and ethnic groups · Sexual and reproductive health · California