Willowbrook, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Willowbrook, Illinois had a total population of 1,913, the 517th largest community in Illinois, with a median household income of $89,773, which is 8% higher than the state average. The poverty rate is 2.8%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- An exceptionally low poverty rate of 2.8% — among the lowest in Illinois.
- Near full employment with an unemployment rate of just 1.8%.
Willowbrook Quick Facts
How Willowbrook 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 | 2,432 | 1,913 | -21.3% |
| Median household income | $87,188 | $89,773 | +3.0% |
| Median home value | $275,700 | $280,700 | +1.8% |
How Willowbrook 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+)
Willowbrook Rankings in Illinois
Explore Illinois Rankings
Other Cities in Will County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Joliet | 150,445 | $92,201 | 11.1% | $265,800 |
| Plainfield | 46,708 | $144,000 | 4.2% | $431,400 |
| Romeoville | 41,152 | $106,325 | 5.5% | $257,100 |
| Oswego | 36,375 | $123,792 | 2.6% | $344,500 |
| New Lenox | 28,006 | $140,865 | 1.5% | $399,900 |
| Lockport | 26,409 | $111,981 | 6.8% | $316,000 |
| Crest Hill | 20,628 | $73,033 | 12.0% | $232,900 |
| Mokena | 20,021 | $123,889 | 4.5% | $401,400 |
| Shorewood | 18,343 | $122,105 | 5.2% | $337,800 |
| Channahon | 13,927 | $119,494 | 5.9% | $327,900 |
Cities Similar to Willowbrook
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Hampton | 1,926 | $90,406 | $184,900 | 30.6% | 4.7% |
| Rome | 1,947 | $88,750 | $159,800 | 23.1% | 6.5% |
| Forest Lake | 1,865 | $96,250 | $346,400 | 48.3% | 4.0% |
| Elwood | 2,001 | $86,458 | $237,500 | 16.9% | 8.1% |
| Roanoke | 1,967 | $82,063 | $139,900 | 26.3% | 5.5% |
Population Overview
Willowbrook is a small community located in Illinois, within Will County. The total population is 1,913. It ranks as the 517th most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Willowbrook is 48.1 years. This is 23% higher than the state median of 39.0 years. Only 13.5% of residents are under 18, indicating fewer families with children.
Economy, Income & Housing
The median household income in Willowbrook is $89,773. This is 8% higher than the state median of $83,390. It is also 11% higher than the national median of $80,734. The poverty rate stands at 2.8%. This is 77% lower than the state poverty rate of 11.8%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 1.8%. This is 69% lower than the state rate of 5.8%. The median home value is $280,700. Housing costs are 7% higher than the state median of $263,300. The home-value-to-income ratio is 3.1x. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 49% higher than the state average of 67.1%.
Race & Ethnicity
The largest racial or ethnic group in Willowbrook is Black or African American, making up 76.0% of the population. White (non-Hispanic) residents account for 12.7%. The White (non-Hispanic) population (12.7%) is well below the state average of 58.1%. The Black or African American population is significantly higher than the state average (76.0% vs 13.3%). The Hispanic or Latino population (6.6%) is well below the state average of 18.8%. The Asian population (0.4%) is well below the state average of 5.9%.
Education
39.1% of residents aged 25 and older hold a bachelor's degree or higher. This is 3% 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 94.6%. Notably, 20.4% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Willowbrook, 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 Willowbrook, Illinois?
Willowbrook, Illinois has a population of 1,913 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Willowbrook, IL?
The median household income in Willowbrook is $89,773, which is 11% higher than the national median of $80,734.
What is the poverty rate in Willowbrook, IL?
The poverty rate in Willowbrook is 2.8%. This means approximately 53 residents live below the federal poverty line.
What is the racial makeup of Willowbrook, Illinois?
Willowbrook's population is 12.7% White, 76.0% Black, 6.6% Hispanic/Latino, and 0.4% Asian.
What is the median home value in Willowbrook, IL?
The median home value in Willowbrook is $280,700. The home-value-to-income ratio is 3.1x.
How educated is Willowbrook, Illinois?
39.1% of adults (25+) in Willowbrook hold a bachelor's degree or higher, and 20.4% hold a graduate or professional degree.