Adams County vs Grundy County

A side-by-side comparison of Adams County and Grundy County: population, income, housing, and more.

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

Adams County has the higher population (65,166 vs 52,920 in Grundy County). Grundy County has the higher median household income ($93,060 vs $64,962 in Adams County). Grundy County has the higher median home value ($259,200 vs $155,900 in Adams County).

Population, income & housing

	Adams County	Grundy County
Population	65,166	52,920
Median age	41.1 yrs	38.6 yrs
Median household income	$64,962	$93,060
Median home value	$155,900	$259,200
Median gross rent	$826	$1,137
Housing units	30,283	21,324
Homeownership rate	72.5%	75.8%
Bachelor's degree or higher	27.0%	24.2%
Unemployment rate	3.6%	4.5%

Trends (ACS 5-year, 2019–2023)

	Adams County	Grundy County
Population	66,085 → 65,166 (-1.4%)	50,666 → 52,920 (+4.4%)
Median household income	$52,993 → $64,962 (+22.6%)	$77,350 → $93,060 (+20.3%)
Median home value	$127,800 → $155,900 (+22.0%)	$199,300 → $259,200 (+30.1%)
Median gross rent	$713 → $826 (+15.8%)	$999 → $1,137 (+13.8%)

Adams County

Population

66,08565,166

Median household income

$52,993$64,962

Median home value

$127,800$155,900

Median gross rent

$713$826

Grundy County

Population

50,66652,920

Median household income

$77,350$93,060

Median home value

$199,300$259,200

Median gross rent

$999$1,137

Age & race/ethnicity

Age distribution (share)

	Adams County	Grundy County
Under 5	6.0%	5.8%
5 to 17	16.7%	18.9%
18 to 24	8.0%	8.7%
25 to 34	11.9%	11.8%
35 to 44	12.0%	13.6%
45 to 54	11.4%	13.4%
55 to 64	14.0%	13.1%
65 to 74	11.1%	8.9%
75 and over	9.0%	5.7%

Race & ethnicity (share)

	Adams County	Grundy County
White (non-Hispanic)	90.3%	83.3%
Black or African American	3.5%	2.1%
American Indian & Alaska Native	0.0%	0.1%
Asian	0.7%	0.4%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.2%	0.1%
Two or more races	3.2%	2.5%
Hispanic or Latino	2.0%	11.5%

Educational attainment (age 25+)

Share of adults 25+

	Adams County	Grundy County
No high school diploma	6.5%	5.8%
High school graduate	34.9%	34.0%
Some college or associate's	31.6%	36.0%
Bachelor's degree	18.1%	16.3%
Graduate or professional degree	8.9%	7.9%

Commute to work

How workers get to work (share)

	Adams County	Grundy County
Drove alone	80.5%	83.8%
Carpooled	8.3%	4.4%
Public transit	0.5%	0.6%
Walked	2.5%	0.8%
Bicycle	0.4%	0.1%
Worked from home	6.7%	9.7%
Other means	1.0%	0.7%

Housing

Units in structure (share)

	Adams County	Grundy County
1-unit, detached	75.7%	71.0%
1-unit, attached	3.7%	9.8%
2 to 4 units	7.1%	7.6%
5 to 19 units	5.3%	5.5%
20 or more units	3.7%	2.1%
Mobile home & other	4.5%	3.9%

Poverty & households

	Adams County	Grundy County
Poverty rate	12.3%	6.3%
Average household size	2.29	2.56
Mean commute (minutes)	17	28
Median year structure built	1964	1990