California Health Interview Survey

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​Learn more about the California Health Survey.

 
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 Did you know?

 
CHIS surveyed 21,449 households in 2018, including 21,177 adults, 432 teens and 1,586 children. Collectively, the CHIS 2017-2018 cycle surveyed more than 42,800 households.

See CHIS facts.
 
 

 Need a Health Statistic?

 

AskCHIS and AskCHIS NE are two FREE online tools that enable you to search for health statistics by:

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  • State
  • County
  • SPA

Learn more at: ask.chis.ucla.edu

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  • ZIP codes 
  • Cities 
  • Legislative districts!

Learn more at: http://askchisne.ucla.edu

Media can get quick data on health insurance, chronic diseases, cancer, HPV and many other topics from the Center's Communications Department.

Call us: 310-794-0930

Or email:
healthpolicy@ucla.edu​
 

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Welcome to CHIS

The California Health Interview Survey (CHIS) is the nation's largest state health survey and a critical source of data on Californians as well as on the state's various racial and ethnic groups. Policymakers, researchers, health experts, members of the media and others depend on CHIS for credible and comprehensive data on the health of Californians.

About CHIS

Policymakers, researchers, health experts, members of the media and others depend on the California Health Interview Survey (CHIS) for credible and comprehensive data on the health of Californians. Learn more about who and where CHIS interviews, survey topics, our partners, funders and more in About CHIS.

Survey Design & Methods

Learn about CHIS methodology, questionnaires, sample design by county and race, survey topics, as well as the populations surveyed. Learn more.

Get CHIS Data

Learn how to quickly get CHIS data through our free, easy-to-use AskCHIS Web tool. Download free public used data files or apply to use sensitive data through our Data Access Center (DAC). Learn more.

Publications

Read published reports, policy briefs and fact sheets. See peer-reviewed journal articles or view current CHIS research projects. Learn more.

How to Use AskCHIS - Tutorials

Our AskCHIS On Demand Learning Center teaches you how to get a health statistic in just a few easy steps!

Learn to use AskCHIS and AskCHIS Neighborhood Edition!