DeKalb County, IL
Demographic and economic profile of DeKalb County, IL, sourced from the US Census Bureau (American Community Survey) via Data USA.
AI Overview
DeKalb County, IL has a population of 101,335 and a relatively young median age of 32.7 years, reflecting the presence of Northern Illinois University in the area. The labor force participation rate stands at 69.1%, with 32.7% of residents holding a bachelor's degree or higher, median worker earnings of $34,932, and an unemployment rate of 7.1%. Housing costs remain modest—median home value of $231,900 and median gross rent of $1,041 per month—though the county has seen a population decline of 3.5% over the past five years and carries a poverty rate of 15.9%.
Claude Sonnet 4.6 · generated Jul 6, 2026 · derived from cached Census, BEA & ACS data on this page
Population Growth (5-year)
-3.5% since 2018
DeKalb County lost population at this rate over the prior 5-year ACS5 window.
Demographics
Race & Ethnicity
- White Alone74,678 (74.2%)
- Black or African American Alone7,056 (7.0%)
- Some Other Race Alone5,363 (5.3%)
- Two Races Including Some Other Race5,334 (5.3%)
- Two Races Excluding Some Other Race, & Three or More Races5,255 (5.2%)
- Asian Alone2,331 (2.3%)
Top Languages Spoken at Home
- 1.Spanish7,248
- 2.Other Indo-European908
- 3.Arabic886
- 4.Russian, Polish, or other Slavic642
- 5.Tagalog (incl. Filipino)464
Economy
Cost of Living Index
—
Not yet cached
Top Industries
- 1.Educational Services, & Health Care & Social Assistance13,648
- 2.Manufacturing (Group)6,196
- 3.Retail Trade (Group)5,960
- 4.Arts, Entertainment, & Recreation, & Accommodation & Food Services5,306
- 5.Professional, Scientific, & Management, & Administrative & Waste Management Services4,701
Top Occupations
- 1.Management, Business, Science, & Arts Occupations18,093
- 2.Sales & Office Occupations10,634
- 3.Service Occupations9,950
- 4.Production, Transportation, & Material Moving Occupations8,444
- 5.Natural Resources, Construction, & Maintenance Occupations4,759
Specialized Industries (Location Quotient)
- 1.Arts, Entertainment, Recreation, & Accommodation (LQ 1.23×)5,634
- 2.Manufacturing (LQ 1.16×)6,020
- 3.Educational Services & Health Care (LQ 1.16×)14,130
- 4.Wholesale Trade (LQ 1.12×)1,348
- 5.Transportation, Warehousing, & Utilities (LQ 1.12×)3,411
Housing
Education
Workforce
Similar Locations
5 counties with comparable population, workforce, income, education, and cost of living. Click any to compare.
More on FDI Connect
Compare DeKalb County against other US geographies, save it to your shortlist, see active property listings on the interactive map, and unlock the full demographic dashboard.
Data: US Census Bureau American Community Survey, served via Data USA and the Census Bureau API. See each metric tile for the specific dataset.