Lebanon, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Lebanon, Illinois had a total population of 4,474, the 354th largest city in Illinois, with a median household income of $88,750, which is 6% higher than the state average. The poverty rate is 14.8%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Housing is very affordable with a home-value-to-income ratio of just 1.9x.
- Near full employment with an unemployment rate of just 1.9%.
Lebanon Quick Facts
How Lebanon Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 4,431 | 4,474 | +1.0% |
| Median household income | $84,766 | $88,750 | +4.7% |
| Median home value | $146,600 | $170,700 | +16.4% |
How Lebanon Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
Moderate diversity with one or two groups making up the majority.
State average: 61 | National average: 61
Education
Educational Attainment (Adults 25+)
Lebanon Rankings in Illinois
Explore Illinois Rankings
Other Cities in St. Clair County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Belleville | 41,370 | $63,535 | 14.6% | $141,300 |
| O'Fallon | 32,262 | $105,982 | 6.2% | $295,700 |
| East St. Louis | 17,999 | $35,700 | 32.8% | $52,600 |
| Fairview Heights | 16,745 | $80,930 | 8.8% | $177,700 |
| Swansea | 14,710 | $91,587 | 8.7% | $223,600 |
| Shiloh | 14,572 | $99,573 | 6.8% | $274,000 |
| Columbia | 11,127 | $107,606 | 5.4% | $293,000 |
| Mascoutah | 8,816 | $97,375 | 9.8% | $224,900 |
| Freeburg | 4,592 | $92,065 | 6.7% | $241,200 |
| Caseyville | 4,130 | $60,669 | 14.3% | $96,800 |
Cities Similar to Lebanon
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Freeburg | 4,592 | $92,065 | $241,200 | 29.2% | 6.7% |
| Breese | 4,301 | $85,222 | $229,600 | 39.4% | 4.2% |
| Wonder Lake | 4,292 | $94,655 | $252,200 | 21.8% | 2.9% |
| Auburn | 4,306 | $81,411 | $149,600 | 27.6% | 8.1% |
| Cortland | 4,564 | $73,971 | $233,200 | 26.7% | 7.0% |
Population Overview
Lebanon is a small community located in Illinois, within St. Clair County. The total population is 4,474. It ranks as the 354th most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Lebanon is 30.2 years. This is 23% lower than the state median of 39.0 years. Only 9.2% of residents are under 18, indicating fewer families with children.
Economy, Income & Housing
The median household income in Lebanon is $88,750. This is 6% higher than the state median of $83,390. It is also 10% higher than the national median of $80,734. The poverty rate stands at 14.8%. This is 25% higher than the state poverty rate of 11.8%. The unemployment rate is 1.9%. This is 67% lower than the state rate of 5.8%. The median home value is $170,700. Housing costs are 35% lower than the state median of $263,300. With a home-value-to-income ratio of just 1.9x, Lebanon is one of the most affordable housing markets in the area. 60.4% of occupied housing units are owner-occupied. This homeownership rate is 10% lower than the state average of 67.1%.
Race & Ethnicity
The largest racial or ethnic group in Lebanon is White (non-Hispanic), making up 67.8% of the population. Black or African American residents account for 17.9%. The Hispanic or Latino population (5.5%) is well below the state average of 18.8%. The Asian population (0.7%) is well below the state average of 5.9%.
Education
38.7% of residents aged 25 and older hold a bachelor's degree or higher. This is 2% higher than the state rate of 37.9%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 95.9%.
Data Sources & Methodology
All demographic data for Lebanon, Illinois is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Illinois state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,445 Census-designated places in Illinois. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Lebanon, Illinois?
Lebanon, Illinois has a population of 4,474 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Lebanon, IL?
The median household income in Lebanon is $88,750, which is 10% higher than the national median of $80,734.
What is the poverty rate in Lebanon, IL?
The poverty rate in Lebanon is 14.8%. This means approximately 535 residents live below the federal poverty line.
What is the racial makeup of Lebanon, Illinois?
Lebanon's population is 67.8% White, 17.9% Black, 5.5% Hispanic/Latino, and 0.7% Asian.
What is the median home value in Lebanon, IL?
The median home value in Lebanon is $170,700. The home-value-to-income ratio is 1.9x.
How educated is Lebanon, Illinois?
38.7% of adults (25+) in Lebanon hold a bachelor's degree or higher, and 13.8% hold a graduate or professional degree.