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What's Available?
1998-2021 State BRFSS Data
· frequencies
· cross-tabulations
· confidence intervals
· strata

Round 1, 2, 3, 4, 5, 6 & 7 County Surveys (ICBRFS)
· frequencies
· cross-tabulations

The Behavioral Risk Factor Surveillance System (BRFSS) is a state-based program that gathers information on risk factors among Illinois adults 18 years of age and older through monthly telephone surveys. Established in 1984 as a collaboration between the U.S. Centers for Disease Control and Prevention (CDC) and state health departments, the BRFSS has grown to be the primary source of information on behaviors and conditions related to the leading causes of death for adults in the general population.

The Illinois County Behavioral Risk Factor Surveys (ICBRFS) are conducted for individual counties employing the same procedures and questions as the BRFSS.

For more information about the BRFSS program at CDC, visit that agency's website at
Use the map to easily access county and strata data. Click the desired county or area and then choose the topic.
Strata Map
Jo Daviess Stephenson Winnebago Boone McHenry Lake Carroll Ogle DeKalb Kane DuPage Suburban Cook County Suburban Cook County Chicago Will Kankakee Iroquois Grundy Kendall Whiteside Lee Rock Island Henry Bureau Putnam LaSalle Mercer Henderson Warren Knox Stark Marshall Livingston Ford Peoria Woodford Tazewell McLean Fulton McDonough Hancock Adams Pike Brown Schuyler Mason Logan Menard Cass Morgan Scott Sangamon DeWitt Macon Piatt Champaign Vermilion Douglas Edgar Coles Clark Cumberland Moultrie Shelby Christian Montgomery Macoupin Greene Calhoun Jersey Madison Bond Fayette Effingham Jasper Crawford Lawrence Wabash Edwards Richland Clay Marion Wayne Jefferson Clinton St. Clair Washington Monroe Randolph Perry Franklin Hamilton Saline White Gallatin Hardin Pope Massac Johnson Williamson Jackson Union Alexander Pulaski

Illinois Department of Public Health
Illinois Center for Health Statistics
525 West Jefferson Street
Springfield, Illinois 62761