About the Survey
The Healthy Illinois (HIL) Survey is a statewide initiative led by the Illinois Department of Public Health (IDPH). In 2021, Gov. JB Pritzker signed P.A. 102-0483, which requires IDPH to conduct a comprehensive annual survey of Illinois residents to provide robust and statistically reliable public health data for every county, ZIP code groupings in more highly populated areas, suburban Cook County municipalities, and Chicago community areas.
The goal of the HIL Survey is to examine a broad set of social determinants of health in detail and provide data at multiple levels of geography and among key demographic groups throughout Illinois. The results of the survey will guide policymakers, including legislators, IDPH, local health departments, hospitals, and others to make informed decisions on how to best allocate limited public health resources.
Based on the results of a 2023 pilot study, the annual HIL Survey utilizes a multi-mode, address-based sample (ABS) design. In addition to the main survey instrument, supplemental topical survey modules may be conducted each year.
Importance of the Survey
Placeholder text about the 4-year sample, the annual and combined-year data files, and what that means for the smaller geographic areas. Data is produced for each year and combination of years…
Public Use Files (PUF)
Analysis functions of the HIL Data Explorer (crosstabs and regressions)
are based on public use microdata and weighted for the data collection year selected.
Small Area Estimates
Topic Report, Community Report, and Interactive Map functions of the HIL Data Explorer are based on small
area estimates at the ZCTA, county, suburban Cook County municipality, or Chicago community area level. However, whole state estimates are direct estimates.
Placeholder descriptive text about what small area estimates are, and that it’s a subset of measures from the survey, and only the main survey, not the supplemental modules.
