California Health Interview Survey


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 Hundreds of health statistics


CHIS has released new 2016 data, including hundreds of new health estimates on topics ranging from health insurance coverage, to diabetes and obesity, to junk food consumption, to mental health. 

Learn more about our sample and the questions we ask.


 Did you know?


CHIS is one of the few sources of representative data on lesbians, gays and bisexuals.

CHIS Facts

1,000,000+ Visitors to the CHIS/UCLA Center for Health Policy Research website.
120,000+ Queries made through AskCHIS in the last 12 months.
1,100,000+ Queries made through AskCHIS since the inception of CHIS in 2002.
63,558 Registered AskCHIS and AskCHIS NE users



Public Use Files downloaded since the inception of CHIS in 2002.

Number of advocacy and community representatives trained by the Center's Health DATA Program to use CHIS data.