DeKalb County, Illinois

13 cities & places have their primary county here.

Population: 100,512
Median household income: $69,022
Median home value: $231,900

DeKalb County, Illinois counts 100,512 residents. 13 cities and places have their primary county here. The median household income of $69,022 is below the Illinois median ($81,702).

Between 2019 and 2023, DeKalb County's population declined 3.7% from 104,366 to 100,512, while its median household income rose 9.0% from $63,317 to $69,022.

Households average 2.44 people. The median gross rent is $1,041.

Demographics

ACS 2019–2023

Population: 100,512
Median age: 32.6 yrs
Median household income: $69,022
Median home value: $231,900
Median gross rent: $1,041
Housing units: 41,499
Homeownership rate: 60.9%
Bachelor's degree or higher: 32.7%
Unemployment rate: 7.1%

Trends

ACS 5-year · 2019–2023

Population

104,366100,512

Median household income

$63,317$69,022

Median home value

$173,100$231,900

Median gross rent

$930$1,041

Year	Population	Median household income	Median home value	Median gross rent
2019	104,366	$63,317	$173,100	$930
2020	104,588	$62,353	$182,300	$917
2021	100,922	$64,019	$190,600	$955
2022	100,686	$68,617	$218,600	$1,024
2023	100,512	$69,022	$231,900	$1,041

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 55.5%

5 to 1716.3%

18 to 2418.2%

25 to 3413.2%

35 to 4411.9%

45 to 5410.5%

55 to 6410.9%

65 to 748.2%

75 and over5.5%

	Count	Share
Under 5	5,563	5.5%
5 to 17	16,343	16.3%
18 to 24	18,291	18.2%
25 to 34	13,218	13.2%
35 to 44	11,962	11.9%
45 to 54	10,504	10.5%
55 to 64	10,935	10.9%
65 to 74	8,192	8.2%
75 and over	5,504	5.5%

Race & ethnicity

	Count	Share
White (non-Hispanic)	72,768	72.4%
Black or African American	7,691	7.7%
American Indian & Alaska Native	70	0.1%
Asian	2,070	2.1%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	230	0.2%
Two or more races	3,608	3.6%
Hispanic or Latino (any race)	14,075	14.0%

Educational attainment (age 25+)

No high school diploma7.6%

High school graduate25.9%

Some college or associate's33.8%

Bachelor's degree20.0%

Graduate or professional degree12.7%

	Count	Share
No high school diploma	4,610	7.6%
High school graduate	15,602	25.9%
Some college or associate's	20,398	33.8%
Bachelor's degree	12,069	20.0%
Graduate or professional degree	7,636	12.7%

Commute to work

Mean travel time to work: 27 min

Drove alone76.4%

Carpooled10.1%

Public transit0.9%

Walked3.5%

Bicycle0.6%

Worked from home7.6%

Other means1.0%

How workers get to work

	Count	Share
Drove alone	38,830	76.4%
Carpooled	5,119	10.1%
Public transit	443	0.9%
Walked	1,769	3.5%
Bicycle	284	0.6%
Worked from home	3,874	7.6%
Other means	529	1.0%

Travel time

	Count	Share
Under 15 min	17,705	37.7%
15 to 29 min	11,313	24.1%
30 to 44 min	8,294	17.7%
45 to 59 min	4,864	10.4%
60+ min	4,798	10.2%

Households

Average household size: 2.44
Poverty rate: 15.9% (15,291 of 96,063)

	Count	Share
Family households	23,627	60.1%
Nonfamily households	15,687	39.9%

Housing

Median year structure built: 1978

Occupancy

	Count	Share
Occupied	39,314	94.7%
Vacant	2,185	5.3%

Tenure (of occupied units)

	Count	Share
Owner-occupied	23,927	60.9%
Renter-occupied	15,387	39.1%

1-unit, detached57.4%

1-unit, attached9.1%

2 to 4 units9.4%

5 to 19 units15.4%

20 or more units6.6%

Mobile home & other2.2%

Units in structure

	Count	Share
1-unit, detached	23,805	57.4%
1-unit, attached	3,765	9.1%
2 to 4 units	3,914	9.4%
5 to 19 units	6,391	15.4%
20 or more units	2,720	6.6%
Mobile home & other	904	2.2%

Geography

County GEOID: 17037
State: Illinois
Land area: 631 sq mi
Water area: 3.31 sq mi
Center point: 41.8946, -88.7690

Cities & places

Compare with nearby counties

Other counties in Illinois

101