Monmouth city, Illinois
Population estimates, July 1, 2025, (V2025) 8,599
People
Population
Population estimates, July 1, 2025, (V2025) 8,599
Population estimates, July 1, 2024, (V2024) 8,639
Population estimates base, April 1, 2020, (V2025) 8,927
Population estimates base, April 1, 2020, (V2024) 8,924
Population, percent change - April 1, 2020 (estimates base) to July 1, 2025, (V2025) -3.7%
Population, percent change - April 1, 2020 (estimates base) to July 1, 2024, (V2024) -3.2%
Population, Census, April 1, 2020 8,902
Population, Census, April 1, 2010 9,444
Age and Sex
Persons under 5 years, percent 5.1%
Persons under 18 years, percent 23.8%
Persons 65 years and over, percent 15.9%
Female persons, percent 51.7%
Race and Hispanic Origin
White alone, percent 73.7%
Black alone, percent(a) 4.5%
American Indian and Alaska Native alone, percent(a) 1.8%
Asian alone, percent(a) 4.1%
Native Hawaiian and Other Pacific Islander alone, percent(a) 0.8%
Two or More Races, percent 6.2%
Hispanic or Latino, percent(b) 18.1%
White alone, not Hispanic or Latino, percent 70.4%
Population Characteristics
Veterans, 2020-2024 331
Foreign-born persons, percent, 2020-2024 10.5%
Housing
Housing Units, July 1, 2025, (V2025) X
Owner-occupied housing unit rate, 2020-2024 66.3%
Median value of owner-occupied housing units, 2020-2024 $86,800
Median selected monthly owner costs - with a mortgage, 2020-2024 $974
Median selected monthly owner costs - without a mortage, 2020-2024 $512
Median gross rent, 2020-2024 $733
Building Permits, 2025 X
Families & Living Arrangements
Households, 2020-2024 3,323
Persons per household, 2020-2024 2.29
Living in the same house 1 year ago, percent of persons age 1 year+ , 2020-2024 83.4%
Language other than English spoken at home, percent of persons age 5 years+, 2020-2024 18.4%
Computer and Internet Use
Households with a computer, percent, 2020-2024 93.3%
Households with a broadband Internet subscription, percent, 2020-2024 85.6%
Education
High school graduate or higher, percent of persons age 25 years+, 2020-2024 84.0%
Bachelor's degree or higher, percent of persons age 25 years+, 2020-2024 18.3%
Health
With a disability, under age 65 years, percent, 2020-2024 10.2%
Persons without health insurance, under age 65 years, percent 6.4%
Economy
In civilian labor force, total, percent of population age 16 years+, 2020-2024 63.9%
In civilian labor force, female, percent of population age 16 years+, 2020-2024 58.9%
Total accommodation and food services sales, 2022 ($1,000)(c) 27,898
Total health care and social assistance receipts/revenue, 2022 ($1,000)(c) 57,241
Total transportation and warehousing receipts/revenue, 2022 ($1,000)(c) 45,150
Total retail sales, 2022 ($1,000)(c) 148,864
Total retail sales per capita, 2022(c) $17,196
Transportation
Mean travel time to work (minutes), workers age 16 years+, 2020-2024 15.5
Income & Poverty
Median households income (in 2024 dollars), 2020-2024 $61,138
Per capita income in past 12 months (in 2024 dollars), 2020-2024 $29,501
Persons in poverty, percent 17.7%
Businesses
Businesses
Total employer establishments, 2023 X
Total employment, 2023 X
Total annual payroll, 2023 ($1,000) X
Total employment, percent change, 2022-2023 X
Total nonemployer establishments, 2023 X
All employer firms, Reference year 2023 X
Male-owned employer firms, Reference year 2023 X
Female-owned employer firms, Reference year 2023 X
Minority-owned employer firms, Reference year 2023 X
Nonminority-owned employer firms, Reference year 2023 X
Veteran-owned employer firms, Reference year 2023 X
Nonveteran-owned employer firms, Reference year 2023 X
Geography
Geography
Population per square mile, 2020 2,098.5
Population per square mile, 2010 2,244.2
Land area in square miles, 2020 4.24
Land area in square miles, 2010 4.21
FIPS Code 1750010