United States › Illinois › DeKalb County COUNTY · 2010 ACS
DeKalb County Illinois · 105,160 residents · 631 sq mi
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The short version
DeKalb County is a county of 105,160 people in Illinois. The median age is 29.3, younger than the US median of 37.2. The population is up 18% since 2000. The foreign-born share is 7%. Median home value sits at $192,300. Median household income is $54,002, close to the national figure.
At a glance
Average income
near the US median
US median: $52,703
Younger
median age 29.3
US median: 37.2
Average education
28% hold a bachelor's degree
US average: 28%
Stable housing
home values roughly flat, inflation adjusted
US median home: $225,659
Section 01
Population & growth from 28.4 in 2000
US average: 37.2
Population, 1990 – 2024
75K 83K 92K 100K 108K 1990 2000 2010 2020 2024 DeKalb County Age distribution, 2010
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Section 02
Income & economy $54,002
−7%inflation adjusted, since 2000
from $45,828 in 2000
US average: $52,703
from $19,462 in 2000
US average: $27,286
Households earning $100K+
from 32.7% in 2009
US average: 33.3%
from 11.4% in 2000
US average: 13.8%
Workforce by industry, 2010
Public administration 3.9%
Professional, scientific, technical 3.6%
Transportation & warehousing 2.7%
Arts, entertainment, food 2%
Agriculture, forestry, fishing 1.9%
Education & health services 0.7%
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$192,300
+13%inflation adjusted, since 2000
from $133,900 in 2000
US average: $225,659
$797
+9%inflation adjusted, since 2000
from $577 in 2000
US average: $853
from 59.5% in 2000
38.8% rent
from 5.4% in 2009
US average: 12.1%
from 2.61 people in 2009
US average: 2.60
from 33.4% in 2009
US average: 30.9%
from 53.0% in 2009
US average: 46.8%
from 3.6 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04
Race & ethnicity 2000
White, non-Hispanic 85.2%(75,772)
Hispanic / Latino 6.6%(5,830)
2010
White, non-Hispanic 79.7%(83,825)
Hispanic / Latino 10.1%(10,647)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry Hispanic origin
+ 5 more hispanic origin groups with data Ancestry
+ 39 more ancestry groups with data from 26.8% in 2000
US average: 27.9%
High school or higher
from 87.5% in 2000
US average: 84.9%
from 10.8% in 2000
US average: 10.2%
Section 06
Commute & transportation from 18.2 min in 2000
US average: 25.2
from 78.6% in 2009
US average: 76.2%
from 9.0% in 2009
US average: 10.4%
from 1.8% in 2009
US average: 4.7%
from 3.8% in 2009
US average: 4.1%
from 5.7% in 2009
US average: 2.8%
from 0.7% in 2009
US average: 0.5%
from 4.6% in 2009
US average: 8.7%
Section 07
Work & employment from 14.6% in 2009
US average: 12.9%
from 32.0% in 2009
US average: 35.2%
Section 08
People & community from 7.1% in 2009
US average: 12.8%
from 7.4% in 2009
US average: 9.9%
Marital status (2024)
Men 15+
Never married 44.1%(18,054)
Women 15+
Never married 40.4%(16,894)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage Showing 2024 (the nearest year with coverage data).
from 10.6% in 2013
US average: 8.4%
from 61.4% in 2020
US average: 54.8%
Direct-purchase
from 14.0% in 2020
US average: 13.8%
from 13.5% in 2020
US average: 18.4%
from 19.4% in 2020
US average: 20.9%
VA health care
from 1.8% in 2020
US average: 2.2%
Any private
from 73.3% in 2020
US average: 67.1%
Any public
from 31.9% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2024
Gulf War (2001 or later) 26.6%(1,087)
Gulf War (1990s) 17.6%(722)
Share of the 4,092 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
Places similar to DeKalb County Head to head
Compare DeKalb County to nearby counties DEKALB COUNTY VS
Kane County
Income $103,163 +91%
Home value $327,000 +70%
Population 525,757 +416%
SEE FULL COMPARISON →
DEKALB COUNTY VS
Kendall County
Income $111,601 +107%
Home value $322,400 +68%
Population 145,470 +43%
SEE FULL COMPARISON →
DEKALB COUNTY VS
Lee County
Income $70,292 +30%
Home value $154,600 −20%
Population 32,914 −68%
SEE FULL COMPARISON →
DEKALB COUNTY VS
Boone County
Income $84,571 +57%
Home value $216,900 +13%
Population 53,568 −47%
SEE FULL COMPARISON →
Frequently asked
How many people live in DeKalb County, Illinois? DeKalb County, Illinois has about 105,160 residents according to the 2010 American Community Survey.
What is the median household income in DeKalb County, Illinois? The typical household in DeKalb County, Illinois earns about $54,002 a year. Half of households make more than that, and half make less.
Is DeKalb County, Illinois expensive? In DeKalb County, Illinois, the median home is worth about $192,300, and the typical rent is about $797 a month.
How educated are people in DeKalb County, Illinois? About 28.0% of adults age 25 and over in DeKalb County, Illinois hold a bachelor's degree or higher.
What is the poverty rate in DeKalb County, Illinois? About 14.6% of people in DeKalb County, Illinois live below the federal poverty line.
Has DeKalb County, Illinois grown since 1990? Yes, DeKalb County, Illinois has grown since 1990. The population has added about 27,228 residents, a change of about 35 percent over that period.
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