California Health Interview Survey


 Join our Newsletter


Join Our Newsletter

A monthly e-mail of breaking news, data, and publications from the Center.


CHIS Webinars

Learn how to understand and use CHIS data with our free webinars.

Browse all Center videos here.

print share


 Comprehensive data

More than 48,000 Californians in every county in the state were surveyed by CHIS in 2013 and 2014, including 40,240 adults, 2,253 adolescents and 5,512 children.

The survey includes samples of Latinos, Asians, and American Indians and representative data for many under-surveyed groups, such as Pacific Islanders. 

Among the respondents are Chinese, Filipinos, Guatemalans, Japanese, Koreans, Mexicans, Salvadorans, South Asians and Vietnamese.



 Need a Health Statistic?


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

  • State
  • County
  • SPA

Learn more at:


  • ZIP codes 
  • Cities 
  • Legislative districts!

Learn more at:

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:


Related Content - Displays a dynamic view of content from your site.  Related Content


CHIS Web Slide for CC 8-17-15.jpg 
 New 2013 and 2014 data released 

Read more about 2014 health insurance data, new one-year data sets, new topics and more! Read a new fact sheet about health insurance trends. 

View a related seminar on all the new and exciting features of CHIS, featuring CHIS Principal Investigator Ninez Ponce, and CHIS Director David Grant. Watch the seminar.

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.



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