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California Health Interview Survey releases new neighborhood-level health data

Published On: November 10, 2026

The UCLA Center for Health Policy Research’s California Health Interview Survey (CHIS) has added new 2023–2024 data to AskCHIS™ Neighborhood Edition (NE), providing updated health estimates for communities across California at some of the most detailed geographic levels available. 

The new data allow users to explore select health and demographic indicators at the census tract, ZIP code, city, county, and state legislative district levels, offering a hyper-local view of health needs and disparities that may not be visible in broader state, regional, or county-level statistics. 

Publicly available through the AskCHIS™ NE online data dissemination and visualization platform, the 2023–2024 data include measures on chronic conditions such as asthma, diabetes, and heart disease; overall health status; food insecurity; mental health; smoking and tobacco use; oral health; obesity; sugar drinks; delays in receiving care; and uninsurance. 

Using a sophisticated modeling technique called Small Area Estimation, AskCHIS™ NE generates reliable, local-level data that can help policymakers, public health agencies, community organizations, and researchers identify disparities, target resources, and develop solutions tailored to the needs of the communities they serve. 

AskCHIS™ NE is one of several free online tools offered by CHIS. AskCHIS™, the survey’s most comprehensive tool, was updated in October 2026 and now includes more than 700 topics/variables and 32 million estimates at county, region, and state levels. 

Interested in learning how to use both tools? Register for a free CHIS Data User Training on Tuesday, December 8.