Demographics & People — DeKalb, Illinois

Population Overview

Population (Census)40,464
Estimated 2026~40,400
Median Age26.1
Total Households16,015
Family Households7,835
Average Household Size2.28
Diversity Index0.5503 (moderately diverse)

Race & Ethnicity

White25,328
Black or African American6,149
Asian1,578
Hispanic or Latino7,426

Heritage & Ancestry

GroupCount
Other groups12,289
Unclassified or not reported8,394
German8,228
Irish6,957
Hispanic: Hispanic or Latino6,559
Hispanic: Mexican5,088
English2,793
Italian2,513
Polish1,956
Swedish1,375

Language

English Only31,445
Spanish4,140
Population 5+38,447

Veterans

Veterans1,661
Population 18+33,093

Commuting

Mean Commute Time23.8 minutes
Work from Home6.3%
Commuter ProfileN/A
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for DeKalb, Illinois.