US Census Data

Grundy County vs Knox County

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

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

Grundy County has the higher population (52,920 vs 49,294 in Knox County). Grundy County has the higher median household income ($93,060 vs $53,291 in Knox County). Grundy County has the higher median home value ($259,200 vs $104,900 in Knox County).

Population, income & housing

Grundy CountyKnox County
Population52,92049,294
Median age38.6 yrs42.4 yrs
Median household income$93,060$53,291
Median home value$259,200$104,900
Median gross rent$1,137$725
Housing units21,32423,788
Homeownership rate75.8%69.8%
Bachelor's degree or higher24.2%20.3%
Unemployment rate4.5%4.5%

Trends (ACS 5-year, 2019–2023)

Grundy CountyKnox County
Population50,666 → 52,920 (+4.4%)50,508 → 49,294 (-2.4%)
Median household income$77,350 → $93,060 (+20.3%)$44,129 → $53,291 (+20.8%)
Median home value$199,300 → $259,200 (+30.1%)$83,000 → $104,900 (+26.4%)
Median gross rent$999 → $1,137 (+13.8%)$634 → $725 (+14.4%)

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

Knox County

Population
50,50849,294
Median household income
$44,129$53,291
Median home value
$83,000$104,900
Median gross rent
$634$725

Age & race/ethnicity

Age distribution (share)

Grundy CountyKnox County
Under 55.8%5.5%
5 to 1718.9%14.6%
18 to 248.7%9.8%
25 to 3411.8%11.1%
35 to 4413.6%11.7%
45 to 5413.4%11.6%
55 to 6413.1%13.6%
65 to 748.9%12.6%
75 and over5.7%9.6%

Race & ethnicity (share)

Grundy CountyKnox County
White (non-Hispanic)83.3%80.8%
Black or African American2.1%7.7%
American Indian & Alaska Native0.1%0.1%
Asian0.4%1.0%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.1%0.3%
Two or more races2.5%3.8%
Hispanic or Latino11.5%6.3%

Educational attainment (age 25+)

Share of adults 25+

Grundy CountyKnox County
No high school diploma5.8%10.7%
High school graduate34.0%34.9%
Some college or associate's36.0%34.1%
Bachelor's degree16.3%13.1%
Graduate or professional degree7.9%7.2%

Commute to work

How workers get to work (share)

Grundy CountyKnox County
Drove alone83.8%80.5%
Carpooled4.4%8.9%
Public transit0.6%0.5%
Walked0.8%3.6%
Bicycle0.1%0.2%
Worked from home9.7%5.7%
Other means0.7%0.6%

Housing

Units in structure (share)

Grundy CountyKnox County
1-unit, detached71.0%76.9%
1-unit, attached9.8%0.9%
2 to 4 units7.6%7.6%
5 to 19 units5.5%6.1%
20 or more units2.1%4.3%
Mobile home & other3.9%4.2%

Poverty & households

Grundy CountyKnox County
Poverty rate6.3%15.9%
Average household size2.562.18
Mean commute (minutes)2821
Median year structure built19901956

Full profiles

2

Related rankings

21
Grundy County vs Knox County: Compare Population & Demographics | US Census Data