Flossmoor, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Flossmoor, Illinois had a total population of 9,391, the 234th largest village in Illinois, with a median household income of $133,663, which is 60% higher than the state average. The poverty rate is 5.5%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 60% above the state average — one of the wealthiest communities in Illinois.
- 64.4% of adults hold a bachelor's degree or higher — top 10% in Illinois.
- Unemployment rate of 11.6% is notably above the national average.
Flossmoor Quick Facts
How Flossmoor 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 | 9,666 | 9,391 | -2.8% |
| Median household income | $137,768 | $133,663 | -3.0% |
| Median home value | $309,100 | $344,800 | +11.5% |
How Flossmoor 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
A diverse community with significant representation from multiple racial and ethnic groups.
State average: 61 | National average: 61
Education
Educational Attainment (Adults 25+)
Flossmoor Rankings in Illinois
Explore Illinois Rankings
Other Cities in Cook County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Chicago | 2,711,226 | $77,902 | 16.8% | $334,100 |
| Elgin | 114,934 | $90,282 | 9.8% | $273,000 |
| Cicero | 82,797 | $70,842 | 14.6% | $249,400 |
| Schaumburg | 76,868 | $97,514 | 5.7% | $330,400 |
| Evanston | 76,340 | $96,434 | 11.8% | $481,200 |
| Arlington Heights | 76,005 | $116,723 | 6.0% | $414,500 |
| Palatine | 66,293 | $97,819 | 8.2% | $355,600 |
| Skokie | 66,219 | $95,337 | 9.7% | $387,200 |
| Des Plaines | 59,156 | $97,875 | 6.0% | $335,600 |
| Orland Park | 57,916 | $98,910 | 7.3% | $367,200 |
Cities Similar to Flossmoor
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Frankfort Square | 9,560 | $126,897 | $305,800 | 32.9% | 6.4% |
| Sugar Grove | 9,240 | $121,207 | $401,900 | 45.9% | 4.7% |
| Winfield | 10,095 | $135,795 | $386,300 | 59.7% | 3.2% |
| Itasca | 9,355 | $114,294 | $390,800 | 52.9% | 2.0% |
| Clarendon Hills | 8,659 | $130,388 | $605,800 | 72.3% | 8.4% |
Population Overview
Flossmoor is a small city located in Illinois, within Cook County. The total population is 9,391. It ranks as the 234th most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Flossmoor is 47.6 years. This is 22% higher than the state median of 39.0 years.
Economy, Income & Housing
The median household income in Flossmoor is $133,663. This is 60% higher than the state median of $83,390. It is also 66% higher than the national median of $80,734. The poverty rate stands at 5.5%. This is 54% lower than the state poverty rate of 11.8%. The unemployment rate is 11.6%. This is 98% higher than the state rate of 5.8%. The median home value is $344,800. Housing costs are 31% higher than the state median of $263,300. With a home-value-to-income ratio of just 2.6x, Flossmoor is one of the most affordable housing markets in the area. 95.1% of occupied housing units are owner-occupied. This homeownership rate is 42% higher than the state average of 67.1%.
Race & Ethnicity
The largest racial or ethnic group in Flossmoor is Black or African American, making up 59.5% of the population. White (non-Hispanic) residents account for 30.1%. The Black or African American population is significantly higher than the state average (59.5% vs 13.3%). The Hispanic or Latino population (4.9%) is well below the state average of 18.8%. The Asian population (1.6%) is well below the state average of 5.9%.
Education
64.4% of residents aged 25 and older hold a bachelor's degree or higher. This places Flossmoor in the top 10% of all cities in the state for educational attainment. This is 70% 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 98.7%. Notably, 29.9% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Flossmoor, 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 Flossmoor, Illinois?
Flossmoor, Illinois has a population of 9,391 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Flossmoor, IL?
The median household income in Flossmoor is $133,663, which is 66% higher than the national median of $80,734.
What is the poverty rate in Flossmoor, IL?
The poverty rate in Flossmoor is 5.5%. This means approximately 509 residents live below the federal poverty line.
What is the racial makeup of Flossmoor, Illinois?
Flossmoor's population is 30.1% White, 59.5% Black, 4.9% Hispanic/Latino, and 1.6% Asian.
What is the median home value in Flossmoor, IL?
The median home value in Flossmoor is $344,800. The home-value-to-income ratio is 2.6x.
How educated is Flossmoor, Illinois?
64.4% of adults (25+) in Flossmoor hold a bachelor's degree or higher, and 29.9% hold a graduate or professional degree.