Belleville, Illinois Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Belleville, Illinois is 41,722 as of the 2023 American Community Survey, making it the 37th-largest city in Illinois. The median household income is $60,529, the median home value is $131,000, and the median age is 38.3.
The population has declined 8.4% since 2010 (44,288 → 40,560).
41,722
Population
1795
People / sq mi
$60,529
Median Income
$131,000
Median Home Value
Belleville covers 23.2 sq mi of land at 1795 people per square mile.
About Belleville, IL
Belleville is a city in Illinois with a population of 41,722. It ranks #37 among cities in Illinois by population. The median age is 38.3, in line with the national median. The population is 47.4% male and 52.6% female.
The median household income in Belleville is $60,529, below the US median of $74,580. 8.9% of residents live below the federal poverty level. Home values sit at a median of $131,000, with monthly rent averaging $947. The homeownership rate of 61.0% is lower than the national rate of 64.8%.
Educational attainment in Belleville reflects 28.0% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 11.0% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 25.9 minutes each way.
Belleville city Population History (2010-2024)
The city of Belleville city had a population of 44,288 in 2010 and 40,560 in 2024, a -8.4% growth over 14 years. The peak was 44,288 in 2010. Average annual growth rate: -0.62%.
40,560
Population (2024)
44,288
Population (2010)
44,288
Peak (2010)
-0.62%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 44,288 |
| 2011 | 43,922 |
| 2012 | 43,503 |
| 2013 | 43,036 |
| 2014 | 42,679 |
| 2015 | 42,235 |
| 2016 | 41,873 |
| 2017 | 41,683 |
| 2018 | 41,341 |
| 2019 | 40,897 |
| 2020 | 42,278 |
| 2021 | 41,844 |
| 2022 | 41,315 |
| 2023 | 40,876 |
| 2024 | 40,560 |
Race & Ethnicity
| White | 57.8% |
| Black or African American | 32.0% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.3% |
| Two or More Races | 0.1% |
Economy & Income
$60,529
Median Household Income
$33,315
Per Capita Income
8.9%
Poverty Rate
3.4%
Unemployment Rate
Housing
$131,000
Median Home Value
$947
Median Rent
61.0%
Owner-Occupied
Education
94.5%
High School+
28.0%
Bachelor's+
Commute
3.6%
Drive Alone
76.1%
Public Transit
11.0%
Work From Home
25.9 min
Avg Commute
Community Profile
32.1%
Foreign Born
96.2%
Non-English at Home
9.2%
Veterans
14.0%
With Disability
94.1%
Health Insurance
92.4%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 25.6% |
| Manufacturing | 10.2% |
| Education, Health Care & Social Services | 10.0% |
| Finance, Insurance & Real Estate | 9.7% |
| Retail Trade | 8.8% |
| Information | 6.9% |
| Construction | 5.1% |
| Public Administration | 4.9% |
| Arts, Entertainment & Food Services | 3.7% |
| Transportation & Warehousing | 1.4% |
| Agriculture & Mining | 0.8% |
Largest cities in Illinois
Largest counties in Illinois
Part of Illinois
Metro areas in Illinois
City rankings
Frequently Asked Questions
Belleville, Illinois has a population of 41,722 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 37th-largest city in Illinois.
The median household income in Belleville, Illinois is $60,529, with 8.9% of residents living below the federal poverty level.
The median home value in Belleville, Illinois is $131,000, with median monthly rent at $947 and a homeownership rate of 61.0%.
The median age in Belleville, Illinois is 38.3 years. The population is 47.4% male and 52.6% female.
The population has declined 8.4% since 2010 (44,288 → 40,560).
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.