County
DeKalb County
Illinois
100,703 population$70,724 median income78,980 voting age0 active campaigns
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Officials Representing DeKalb County
US House
State Legislature
Andrew Chesney
Republican
State Senate · District 45
Brad Fritts
Republican
State House · District 74
Dave Syverson
Republican
State Senate · District 35
Jed Davis
Republican
State House · District 75
Jeff Keicher
Republican
State House · District 70
Li Arellano
Republican
State Senate · District 37
Murri Briel
Democratic
State House · District 76
Sue Rezin
Republican
State Senate · District 38
Tony McCombie
Republican
State House · District 89
Congressional District Coverage
DeKalb County is 70% in IL Congressional District 14, 17% in IL Congressional District 16, and 13% in IL Congressional District 11.
Area-weighted; population-weighted shares may differ in counties with large urban/rural density splits.
Median Income
$70,724
↓ 15%vs $83,390
Bachelor's+
33.0%
↓ 13%vs 37.9%
Under 18
21.6%
↓ 1%vs 21.9%
Owner-Occupied
61.4%
↓ 8%vs 67.1%
White (non-Hispanic)
74.2%
↔ 22%vs 61.0%
Demographics
American Community Survey 2024 5-year estimates
Race & Ethnicity
White74.2%
Hispanic/Latino14.5%
Black7.0%
Asian2.3%
Two or More10.5%
Other6.0%
Income & Economy
Median Household Income$70,724
Per Capita Income$36,298
Poverty Rate14.8%
Unemployment6.8%
Education
High School+92.2%
Bachelor's+33.0%
Housing
Median Home Value$243,600
Median Rent$1,049
Owner-Occupied61.4%
Health Insurance
Uninsured5.1%
Age Distribution
Under 1821.6%
65 and Over13.9%
Median Age32.7