Belleville is home to 41,370 people in Illinois. Home values have more than doubled since 2000, reaching $141,300. 3% of residents were born outside the United States. That trails the Illinois median by roughly 24%. 28% of adults hold a bachelor's degree or higher. Density works out to 1,781 people per square mile.
At a glance
Lower income
median household income $63,535, below the US median
US median: $82,259
Mid-age
median age 39.1
US median: 38.9
Less educated
28% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Belleville
What changed most since 1990
Black share6.6% → 32.5%(+25.9 pts)US over the same years: +0.2 pts
White share91.3% → 56.7%(−34.7 pts)US over the same years: −17.8 pts
Poverty rate9.0% → 14.6%(+5.7 pts)US over the same years: −0.8 pts
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)29.7%(823)
US avg: 26.4%
Gulf War (1990s)32.2%(892)
US avg: 24.3%
Vietnam era29.8%(825)
US avg: 33.1%
Korean War2%(56)
US avg: 4.5%
World War II1.3%(36)
US avg: 1%
Share of the 2,770 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.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Belleville, decade by decade
Belleville population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
42,705
$64,005
$138,964
15.2%
20.1
2000
41,410
$65,541
$126,969
17.6%
40.9
2010
44,478
$65,396
$153,783
23.5%
58.5
2020
42,404
$64,048
$118,174
26.8%
71.0
2024
41,370
$63,535
$141,300
28.0%
70.9
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
