United States › Illinois › Knox County COUNTY · 2010 ACS
Knox County Illinois · 52,919 residents · 716 sq mi
Time machine
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The short version
With 52,919 people, Knox County is a county in Illinois. The typical home is worth $80,600. Four-year degrees are less common here than nationally, at 15% of adults. The median age is 42.0, about 5 years above the US median. The foreign-born share is 2%. That trails the Illinois median by roughly 29%.
At a glance
Lower income
below the US median
US median: $52,703
Older
median age 42.0
US median: 37.2
Less educated
15% 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 39.4 in 2000
US average: 37.2
Population, 1990 – 2024
48K 51K 53K 55K 57K 1990 2000 2010 2020 2024 Knox County Age distribution, 2010
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Section 02
Income & economy $39,545
−12%inflation adjusted, since 2000
from $35,407 in 2000
US average: $52,703
from $17,985 in 2000
US average: $27,286
Households earning $100K+
from 19.9% in 2009
US average: 33.3%
from 11.1% in 2000
US average: 13.8%
Workforce by industry, 2010
Professional, scientific, technical 7.6%
Transportation & warehousing 3.4%
Public administration 3.3%
Agriculture, forestry, fishing 2.8%
Arts, entertainment, food 2.2%
Education & health services 0.8%
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$80,600
Unchangedinflation adjusted, since 2000
from $63,400 in 2000
US average: $225,659
$553
+6%inflation adjusted, since 2000
from $411 in 2000
US average: $853
from 71.6% in 2000
30.3% rent
from 8.9% in 2009
US average: 12.1%
from 2.16 people in 2009
US average: 2.60
from 20.3% in 2009
US average: 30.9%
from 42.0% in 2009
US average: 46.8%
from 2.1 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 88.4%(49,355)
Hispanic / Latino 3.4%(1,896)
2010
White, non-Hispanic 85.3%(45,132)
Hispanic / Latino 4.8%(2,558)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 32 more ancestry groups with data from 14.6% in 2000
US average: 27.9%
High school or higher
from 81.8% in 2000
US average: 84.9%
from 4.9% in 2000
US average: 10.2%
Section 06
Commute & transportation from 13.1 min in 2000
US average: 25.2
from 82.7% in 2009
US average: 76.2%
from 8.9% in 2009
US average: 10.4%
from 0.8% in 2009
US average: 4.7%
from 3.0% in 2009
US average: 4.1%
from 3.6% in 2009
US average: 2.8%
from 0.3% in 2009
US average: 0.5%
from 9.0% in 2009
US average: 8.7%
Section 07
Work & employment from 11.6% in 2009
US average: 12.9%
from 28.5% in 2009
US average: 35.2%
Section 08
People & community from 1.9% in 2009
US average: 12.8%
from 11.9% in 2009
US average: 9.9%
Marital status (2024)
Men 15+
Never married 41.1%(8,526)
Women 15+
Never married 29.1%(5,853)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage Showing 2024 (the nearest year with coverage data).
from 11.4% in 2013
US average: 8.4%
from 51.8% in 2020
US average: 54.8%
Direct-purchase
from 19.1% in 2020
US average: 13.8%
from 22.9% in 2020
US average: 18.4%
from 23.9% in 2020
US average: 20.9%
VA health care
from 2.6% in 2020
US average: 2.2%
Any private
from 68.1% in 2020
US average: 67.1%
Any public
from 44.0% 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) 17.8%(510)
Gulf War (1990s) 13.3%(379)
Share of the 2,858 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 Knox County Head to head
Compare Knox County to nearby counties KNOX COUNTY VS
Warren County
Income $67,385 +70%
Home value $105,000 +30%
Population 16,222 −66%
SEE FULL COMPARISON →
KNOX COUNTY VS
Stark County
Income $62,878 +59%
Home value $104,500 +30%
Population 5,319 −89%
SEE FULL COMPARISON →
KNOX COUNTY VS
Peoria County
Income $65,108 +65%
Home value $158,500 +97%
Population 178,553 +274%
SEE FULL COMPARISON →
KNOX COUNTY VS
Henry County
Income $71,911 +82%
Home value $151,600 +88%
Population 48,095 +1%
SEE FULL COMPARISON →
Frequently asked
How many people live in Knox County, Illinois? Knox County, Illinois has about 52,919 residents according to the 2010 American Community Survey.
What is the median household income in Knox County, Illinois? The typical household in Knox County, Illinois earns about $39,545 a year. Half of households make more than that, and half make less.
Is Knox County, Illinois expensive? In Knox County, Illinois, the median home is worth about $80,600, and the typical rent is about $553 a month.
How educated are people in Knox County, Illinois? About 15.2% of adults age 25 and over in Knox County, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Knox County, Illinois? About 15.5% of people in Knox County, Illinois live below the federal poverty line.
Has Knox County, Illinois grown since 1990? Yes, Knox County, Illinois has shrunk since 1990. The population has lost about 3,474 residents, a change of about -6 percent over that period.
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