Romeoville, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Romeoville, Illinois had a total population of 41,152, the 38th largest village in Illinois, with a median household income of $106,325, which is 28% 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
- Housing is very affordable with a home-value-to-income ratio of just 2.4x.
Romeoville Quick Facts
How Romeoville 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 | 40,996 | 41,152 | +0.4% |
| Median household income | $100,022 | $106,325 | +6.3% |
| Median home value | $245,200 | $257,100 | +4.9% |
How Romeoville 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+)
Romeoville 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 |
| 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 |
| Minooka | 12,891 | $115,445 | 2.6% | $315,600 |
Cities Similar to Romeoville
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Crystal Lake | 40,579 | $108,418 | $311,400 | 42.0% | 6.8% |
| Carol Stream | 39,460 | $102,309 | $335,000 | 42.8% | 6.4% |
| Streamwood | 39,001 | $101,218 | $271,200 | 27.8% | 10.2% |
| Lombard | 43,619 | $100,362 | $335,700 | 49.9% | 7.2% |
| Bartlett | 40,501 | $133,240 | $375,700 | 49.5% | 4.2% |
Population Overview
Romeoville is a mid-sized community located in Illinois, within Will County. The total population is 41,152. It ranks as the 38th most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Romeoville is 35.5 years. This is 9% lower than the state median of 39.0 years.
Economy, Income & Housing
The median household income in Romeoville is $106,325. This is 28% higher than the state median of $83,390. It is also 32% higher than the national median of $80,734. The poverty rate stands at 5.5%. This is 53% lower than the state poverty rate of 11.8%. The unemployment rate is 5.1%. This is 14% lower than the state rate of 5.8%. The median home value is $257,100. Housing costs are 2% lower than the state median of $263,300. With a home-value-to-income ratio of just 2.4x, Romeoville is one of the most affordable housing markets in the area. 80.7% of occupied housing units are owner-occupied. This homeownership rate is 20% higher than the state average of 67.1%.
Race & Ethnicity
Romeoville is a highly diverse community where no single racial or ethnic group constitutes a majority of the population. Hispanic or Latino residents account for 35.7%. The Hispanic or Latino population is significantly higher than the state average (35.7% vs 18.8%).
Education
28.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 25% lower 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 85.4%.
Data Sources & Methodology
All demographic data for Romeoville, 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 Romeoville, Illinois?
Romeoville, Illinois has a population of 41,152 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Romeoville, IL?
The median household income in Romeoville is $106,325, which is 32% higher than the national median of $80,734.
What is the poverty rate in Romeoville, IL?
The poverty rate in Romeoville is 5.5%. This means approximately 2,243 residents live below the federal poverty line.
What is the racial makeup of Romeoville, Illinois?
Romeoville's population is 40.5% White, 14.2% Black, 35.7% Hispanic/Latino, and 6.2% Asian.
What is the median home value in Romeoville, IL?
The median home value in Romeoville is $257,100. The home-value-to-income ratio is 2.4x.
How educated is Romeoville, Illinois?
28.3% of adults (25+) in Romeoville hold a bachelor's degree or higher, and 9.7% hold a graduate or professional degree.