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Interpretation of Demographics Data

Demographic Data Report for Illinois by County
Population: Age 40 and over
All Races (includes Hispanic), Both Sexes
2020-2024 American Community Survey 5-Year Data
Sorted by Percent

United States


Illinois


Champaign County


DeKalb County


Jackson County


McLean County


Kendall County


McDonough County


Cook County


Grundy County


Coles County


Peoria County


Douglas County


Cass County


Kane County


Lake County


Warren County


Will County


Kankakee County


Bond County


Winnebago County


Boone County


St. Clair County


Effingham County


DuPage County


Moultrie County


Madison County


Rock Island County


Clay County


Woodford County


Macon County


McHenry County


Jefferson County


Logan County


Sangamon County


Ford County


Lawrence County


Brown County


Morgan County


Vermilion County


Clinton County


Marion County


Adams County


Williamson County


Fayette County


Livingston County


Johnson County


Ogle County


Tazewell County


La Salle County


Perry County


Pike County


Clark County


Whiteside County


Piatt County


Saline County


Knox County


Richland County


Crawford County


Cumberland County


Jersey County


Montgomery County


Christian County


Menard County


Franklin County


Lee County


Wabash County


Monroe County


Pulaski County


Washington County


Wayne County


Greene County


Henry County


Stark County


Bureau County


Fulton County


Hamilton County


Randolph County


White County


Union County


De Witt County


Macoupin County


Mason County


Shelby County


Iroquois County


Jasper County


Stephenson County


Mercer County


Massac County


Hancock County


Edwards County


Marshall County


Gallatin County


Carroll County


Putnam County


Scott County


Edgar County


Alexander County


Henderson County


Jo Daviess County


Calhoun County


Hardin County


Schuyler County


Pope County





Notes:
Created by statecancerprofiles.cancer.gov on 03/26/2026 7:01 pm.

Φ Rural–urban county classifications are based on the 2023 USDA Rural–Urban Continuum Codes (except for Connecticut Counties which use 2013 codes). State-level cancer rates for rural areas are calculated using cancer cases registered exclusively in rural counties, while state-level cancer rates for urban areas are calculated using cases registered exclusively in urban counties.

Source: Demographic data provided by the Census Bureau and the American Community Survey.

For more information about Population: Age 40 and over, see the dictionary.

Data for United States does not include Puerto Rico.