DeKalb County vs LaSalle County

A side-by-side comparison of DeKalb County and LaSalle County: population, income, housing, and more.

DeKalb County and LaSalle County are counties in Illinois. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

LaSalle County has the higher population (109,049 vs 100,512 in DeKalb County). LaSalle County has the higher median household income ($72,281 vs $69,022 in DeKalb County). DeKalb County has the higher median home value ($231,900 vs $154,900 in LaSalle County).

Population, income & housing

	DeKalb County	LaSalle County
Population	100,512	109,049
Median age	32.6 yrs	42.1 yrs
Median household income	$69,022	$72,281
Median home value	$231,900	$154,900
Median gross rent	$1,041	$906
Housing units	41,499	49,838
Homeownership rate	60.9%	73.9%
Bachelor's degree or higher	32.7%	18.7%
Unemployment rate	7.1%	5.7%

Trends (ACS 5-year, 2019–2023)

	DeKalb County	LaSalle County
Population	104,366 → 100,512 (-3.7%)	109,737 → 109,049 (-0.6%)
Median household income	$63,317 → $69,022 (+9.0%)	$58,142 → $72,281 (+24.3%)
Median home value	$173,100 → $231,900 (+34.0%)	$127,200 → $154,900 (+21.8%)
Median gross rent	$930 → $1,041 (+11.9%)	$777 → $906 (+16.6%)

DeKalb County

Population

104,366100,512

Median household income

$63,317$69,022

Median home value

$173,100$231,900

Median gross rent

$930$1,041

LaSalle County

Population

109,737109,049

Median household income

$58,142$72,281

Median home value

$127,200$154,900

Median gross rent

$777$906

Age & race/ethnicity

Age distribution (share)

	DeKalb County	LaSalle County
Under 5	5.5%	5.3%
5 to 17	16.3%	16.0%
18 to 24	18.2%	7.8%
25 to 34	13.2%	12.1%
35 to 44	11.9%	12.5%
45 to 54	10.5%	11.9%
55 to 64	10.9%	14.9%
65 to 74	8.2%	11.4%
75 and over	5.5%	8.0%

Race & ethnicity (share)

	DeKalb County	LaSalle County
White (non-Hispanic)	72.4%	83.0%
Black or African American	7.7%	2.6%
American Indian & Alaska Native	0.1%	0.0%
Asian	2.1%	0.9%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.2%	0.2%
Two or more races	3.6%	2.4%
Hispanic or Latino	14.0%	10.8%

Educational attainment (age 25+)

Share of adults 25+

	DeKalb County	LaSalle County
No high school diploma	7.6%	8.6%
High school graduate	25.9%	36.0%
Some college or associate's	33.8%	36.7%
Bachelor's degree	20.0%	12.8%
Graduate or professional degree	12.7%	6.0%

Commute to work

How workers get to work (share)

	DeKalb County	LaSalle County
Drove alone	76.4%	84.0%
Carpooled	10.1%	8.2%
Public transit	0.9%	0.1%
Walked	3.5%	1.7%
Bicycle	0.6%	0.3%
Worked from home	7.6%	4.6%
Other means	1.0%	1.0%

Housing

Units in structure (share)

	DeKalb County	LaSalle County
1-unit, detached	57.4%	79.2%
1-unit, attached	9.1%	2.7%
2 to 4 units	9.4%	7.9%
5 to 19 units	15.4%	4.0%
20 or more units	6.6%	2.5%
Mobile home & other	2.2%	3.8%

Poverty & households

	DeKalb County	LaSalle County
Poverty rate	15.9%	13.5%
Average household size	2.44	2.35
Mean commute (minutes)	27	26
Median year structure built	1978	1963