The Small Area Health Insurance Estimates (SAHIE) program was created to develop model-based estimates of health insurance coverage for counties and states. SAHIE is only source of single-year health insurance coverage estimates for all U.S. counties. This program is partially funded by the Centers for Disease Control and Prevention's (CDC) Division of Cancer Prevention and Control (DCPC). The SAHIE program models health insurance coverage by combining survey data with administrative records and other Census data sources. The model produces timely and accurate estimates of health insurance coverage. Additionally, the SAHIE program's model methodology and estimates have undergone internal U.S. Census Bureau review as well as external review.

The SAHIE program produces data for the following domains:

• Ages 0-64, 18-64, 21-64, 40-64, and 50-64
• Female, male, and both sexes
• All incomes and income-to-poverty ratios (IPR) 0-138, 0-200, 0-250, 0-400, and 138-400 percent of the poverty threshold
• For states only: White alone (not Hispanic or Latino), Black or African American alone (not Hispanic or Latino), American Indian and Alaska Native alone (not Hispanic or Latino), Asian alone (not Hispanic or Latino), Native Hawaiian and Other Pacific Islander alone (not Hispanic or Latino), Two or More Races (not Hispanic or Latino), Hispanic or Latino (any race)
• In addition, estimates for age category 0-18 by the six income categories listed above are produced

Read more about SAHIE.

For more information about SAHIE categorical variable values: SAHIE file layout overview [PDF <1.0 MB]

For more information on when to use what Census Health Insurance products.

Also, please note that we currently only have SAHIE API data.

• API information: api.census.gov/data/timeseries/healthins/sahie.html
• Geography: api.census.gov/data/timeseries/healthins/sahie/geography.html
• Variables: api.census.gov/data/timeseries/healthins/sahie/variables.html
• Example Call: Shows the percentage of people insured and the percentage of people not insured in all counties in Delaware in 2021.

https://api.census.gov/data/timeseries/healthins/sahie?get=NIC_PT,NUI_PT&for=county:*&in=state:10&time=2021

• API calls that request too many values at one time need to be subset by geography, time, or age/race/sex/IPR categories. An example of this:

api.census.gov/data/timeseries/healthins/sahie?get=NIC_PT,NAME,NUI_PT,YEAR&for=county:*&in=state:01&AGECAT=0&SEXCAT=0&IPRCAT=0

• Additional examples: https://api.census.gov/data/timeseries/healthins/sahie/examples.html
• Categorical values: SAHIE file layout overview [PDF <1.0 MB]