The U.S. Census Bureau has published 5-year American Community Survey (ACS) files for 2020-2024, offering uninsured rate estimates for every state and county, as detailed in a SHADAC resource post. Unlike single-year ACS estimates, which cover only areas with populations of 65,000 or more, the 5-year pooled data allow for more granular geographies, including areas under 20,000 people such as ZIP Code Tabulation Areas and Census tracts. SHADAC notes that Census Bureau definitions of family and income differ from the Health Insurance Unit and federal poverty guideline measures SHADAC uses in its own State Health Compare tool, so users should account for these methodological differences when comparing sources. The data are available now via an interactive map and data.census.gov.
Why it mattersState Medicaid agencies, researchers, and advocates rely on this granular uninsured-rate data to target outreach, justify coverage expansion proposals, and benchmark county-level enrollment gaps against federal poverty guideline-based eligibility thresholds.