Knox County, Illinois
Population, Census, April 1, 2020 49,967
People
Population
Population estimates, July 1, 2025, (V2025) 47,767
Population estimates, July 1, 2024, (V2024) 48,716
Population estimates base, April 1, 2020, (V2025) 49,976
Population estimates base, April 1, 2020, (V2024) 49,970
Population, percent change - April 1, 2020 (estimates base) to July 1, 2025, (V2025) -4.4%
Population, percent change - April 1, 2020 (estimates base) to July 1, 2024, (V2024) -2.5%
Population, Census, April 1, 2020 49,967
Population, Census, April 1, 2010 52,919
Age and Sex
Persons under 5 years, percent 5.2%
Persons under 18 years, percent 20.1%
Persons 65 years and over, percent 22.6%
Female persons, percent 48.9%
Race and Hispanic Origin
White alone, percent 85.5%
Black alone, percent(a) 9.3%
American Indian and Alaska Native alone, percent(a) 0.5%
Asian alone, percent(a) 1.4%
Native Hawaiian and Other Pacific Islander alone, percent(a) 0.1%
Two or More Races, percent 3.3%
Hispanic or Latino, percent(b) 6.8%
White alone, not Hispanic or Latino, percent 79.9%
Population Characteristics
Veterans, 2020-2024 2,858
Foreign-born persons, percent, 2020-2024 3.2%
Housing
Housing Units, July 1, 2025, (V2025) 23,665
Owner-occupied housing unit rate, 2020-2024 70.8%
Median value of owner-occupied housing units, 2020-2024 $111,900
Median selected monthly owner costs - with a mortgage, 2020-2024 $1,177
Median selected monthly owner costs - without a mortage, 2020-2024 $545
Median gross rent, 2020-2024 $788
Building Permits, 2025 1
Families & Living Arrangements
Households, 2020-2024 20,972
Persons per household, 2020-2024 2.15
Living in the same house 1 year ago, percent of persons age 1 year+ , 2020-2024 89.8%
Language other than English spoken at home, percent of persons age 5 years+, 2020-2024 5.2%
Computer and Internet Use
Households with a computer, percent, 2020-2024 90.6%
Households with a broadband Internet subscription, percent, 2020-2024 84.0%
Education
High school graduate or higher, percent of persons age 25 years+, 2020-2024 89.9%
Bachelor's degree or higher, percent of persons age 25 years+, 2020-2024 21.0%
Health
With a disability, under age 65 years, percent, 2020-2024 10.0%
Persons without health insurance, under age 65 years, percent 6.5%
Economy
In civilian labor force, total, percent of population age 16 years+, 2020-2024 55.3%
In civilian labor force, female, percent of population age 16 years+, 2020-2024 55.6%
Total accommodation and food services sales, 2022 ($1,000)(c) 93,865
Total health care and social assistance receipts/revenue, 2022 ($1,000)(c) 339,862
Total transportation and warehousing receipts/revenue, 2022 ($1,000)(c) 93,427
Total retail sales, 2022 ($1,000)(c) 1,014,710
Total retail sales per capita, 2022(c) $20,870
Transportation
Mean travel time to work (minutes), workers age 16 years+, 2020-2024 20.4
Income & Poverty
Median households income (in 2024 dollars), 2020-2024 $57,030
Per capita income in past 12 months (in 2024 dollars), 2020-2024 $31,878
Persons in poverty, percent 15.7%
Businesses
Businesses
Total employer establishments, 2023 968
Total employment, 2023 14,242
Total annual payroll, 2023 ($1,000) 572,265
Total employment, percent change, 2022-2023 0.3%
Total nonemployer establishments, 2023 2,310
All employer firms, Reference year 2023 776
Male-owned employer firms, Reference year 2023 328
Female-owned employer firms, Reference year 2023 S
Minority-owned employer firms, Reference year 2023 S
Nonminority-owned employer firms, Reference year 2023 500
Veteran-owned employer firms, Reference year 2023 S
Nonveteran-owned employer firms, Reference year 2023 610
Geography
Geography
Population per square mile, 2020 69.7
Population per square mile, 2010 73.9
Land area in square miles, 2020 716.39
Land area in square miles, 2010 716.40
FIPS Code 17095