Winnebago County, Illinois
Population, Census, April 1, 2020 285,350
People
Population
Population estimates, July 1, 2025, (V2025) 283,674
Population estimates, July 1, 2024, (V2024) 283,790
Population estimates base, April 1, 2020, (V2025) 285,351
Population estimates base, April 1, 2020, (V2024) 285,371
Population, percent change - April 1, 2020 (estimates base) to July 1, 2025, (V2025) -0.6%
Population, percent change - April 1, 2020 (estimates base) to July 1, 2024, (V2024) -0.6%
Population, Census, April 1, 2020 285,350
Population, Census, April 1, 2010 295,266
Age and Sex
Persons under 5 years, percent 6.0%
Persons under 18 years, percent 23.3%
Persons 65 years and over, percent 19.2%
Female persons, percent 51.1%
Race and Hispanic Origin
White alone, percent 77.8%
Black alone, percent(a) 14.7%
American Indian and Alaska Native alone, percent(a) 0.7%
Asian alone, percent(a) 3.2%
Native Hawaiian and Other Pacific Islander alone, percent(a) 0.1%
Two or More Races, percent 3.5%
Hispanic or Latino, percent(b) 16.6%
White alone, not Hispanic or Latino, percent 63.3%
Population Characteristics
Veterans, 2020-2024 13,120
Foreign-born persons, percent, 2020-2024 8.9%
Housing
Housing Units, July 1, 2025, (V2025) 125,247
Owner-occupied housing unit rate, 2020-2024 65.9%
Median value of owner-occupied housing units, 2020-2024 $164,500
Median selected monthly owner costs - with a mortgage, 2020-2024 $1,411
Median selected monthly owner costs - without a mortage, 2020-2024 $635
Median gross rent, 2020-2024 $1,021
Building Permits, 2025 309
Families & Living Arrangements
Households, 2020-2024 116,014
Persons per household, 2020-2024 2.41
Living in the same house 1 year ago, percent of persons age 1 year+ , 2020-2024 87.5%
Language other than English spoken at home, percent of persons age 5 years+, 2020-2024 15.2%
Computer and Internet Use
Households with a computer, percent, 2020-2024 93.9%
Households with a broadband Internet subscription, percent, 2020-2024 88.8%
Education
High school graduate or higher, percent of persons age 25 years+, 2020-2024 88.8%
Bachelor's degree or higher, percent of persons age 25 years+, 2020-2024 25.2%
Health
With a disability, under age 65 years, percent, 2020-2024 10.6%
Persons without health insurance, under age 65 years, percent 7.3%
Economy
In civilian labor force, total, percent of population age 16 years+, 2020-2024 61.4%
In civilian labor force, female, percent of population age 16 years+, 2020-2024 57.6%
Total accommodation and food services sales, 2022 ($1,000)(c) 719,023
Total health care and social assistance receipts/revenue, 2022 ($1,000)(c) 3,092,068
Total transportation and warehousing receipts/revenue, 2022 ($1,000)(c) 2,818,462
Total retail sales, 2022 ($1,000)(c) 5,069,269
Total retail sales per capita, 2022(c) $18,005
Transportation
Mean travel time to work (minutes), workers age 16 years+, 2020-2024 23.0
Income & Poverty
Median households income (in 2024 dollars), 2020-2024 $65,837
Per capita income in past 12 months (in 2024 dollars), 2020-2024 $35,697
Persons in poverty, percent 14.8%
Businesses
Businesses
Total employer establishments, 2023 6,286
Total employment, 2023 117,137
Total annual payroll, 2023 ($1,000) 6,477,871
Total employment, percent change, 2022-2023 5.2%
Total nonemployer establishments, 2023 20,061
All employer firms, Reference year 2023 5,326
Male-owned employer firms, Reference year 2023 S
Female-owned employer firms, Reference year 2023 1,099
Minority-owned employer firms, Reference year 2023 610
Nonminority-owned employer firms, Reference year 2023 4,133
Veteran-owned employer firms, Reference year 2023 185
Nonveteran-owned employer firms, Reference year 2023 4,423
Geography
Geography
Population per square mile, 2020 556.2
Population per square mile, 2010 575.2
Land area in square miles, 2020 513.05
Land area in square miles, 2010 513.36
FIPS Code 17201