Romeoville, Illinois Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Updated
Romeoville, IL Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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B
Health Around average
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B
Income Around average
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D
Education Well below average
Source: Map AI Methodology
Population
| Metric | Romeoville | Illinois Avg | U.S. Average |
|---|---|---|---|
| Population | 36,499 | 12,692,444 | 337,468,954 |
| Population density (per sq mi) | 1792.8 | 219.1 | 86.4 |
| Population growth (%/yr) | 0.19% | -0.16% | 0.59% |
| Median age | 37.8 | 37.4 | 37.3 |
| Households | 12,144 | 5,035,584 | 130,235,071 |
Population in Romeoville grew by 4.8% from 2009 to 2024, reaching 36,499 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Romeoville is Gen Z, aged 13–28, at 24.9% of residents. That is 3.7 points above Illinois as a whole.
- Gen Z 13–28 9,094 24.9% +3.7 pts
- Millennials 29–44 7,969 21.8% on par
- Gen X 45–60 7,488 20.5% +0.1 pts
- Boomers 61–79 4,573 12.5% -4.4 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Illinois, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 50.8% of the people living in Romeoville and men 49.2%.
- Women 50.8% Illinois 50.6%
- Men 49.2% Illinois 49.4%
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Economy
Romeoville has a the economy index of B, which means it is quite prosperous.
| Metric | Romeoville | Illinois Avg | U.S. Average |
|---|---|---|---|
| Median household income | $102,094 | $84,042 | $80,455 |
| Income growth (%/yr) | 4.73% | 4.46% | 4.80% |
| Unemployment rate | 5.0% | 5.8% | 5.2% |
The median household income in Romeoville is about 21% higher than in Illinois.
Housing
| Metric | Romeoville | Illinois Avg | U.S. Average |
|---|---|---|---|
| Median home price | $317,182 | $149,936 | $248,835 |
| Median rent | $1,891 | $1,274 | $1,407 |
| Homeownership rate | 81.3% | 67.1% | 65.2% |
The median home price in Romeoville is about 14.0 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,891 per month for that long.
Commute Time & Mobility
Commuters in Romeoville spend about 61 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 255 hours, about 10.6 full days, spent commuting.
| Metric | Romeoville | Illinois Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 30.6 | 23.6 | 22.4 |
| Round-trip commute (min) | 61.2 | 47.3 | 44.8 |
| Yearly time spent (hours) | 255 | 197 | 187 |
| Estimated yearly cost | $7,903 | $6,104 | $5,790 |
| Work from home | 11.7% | 15.9% | 15.0% |
| Highway traffic (vehicles/day) | 33,420 | 7,977 | 8,813 |
| Local road traffic (vehicles/day) | 4,142 | 1,547 | 1,355 |
The average commute time in Romeoville is 31 minutes, longer than the 24 minutes in Illinois.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Romeoville has a education index of D, which means it is barely educated.
| Metric | Romeoville | Illinois Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 21.1% | 34.1% | 31.6% |
| Average household size | 2.98 | 2.46 | 2.53 |
Health
Romeoville has a health index of B, which means it is quite healthy.
| Metric | Romeoville | Illinois Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 78.3 | 77.9 | 78.3 |
| Self-rated poor health | 13.0% | 15.6% | 16.3% |
| Smokers | 16.0% | 19.2% | 19.0% |
Romeoville, IL Compared With Nearby Cities
How Romeoville, IL compares with the 1 cities closest to it.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Romeoville, IL | 36,499 | $102,094 #2/2 | $317,182 #1/2 | 30.6 min #2/2 |
| Bolingbrook, IL | 74,594 | $107,929 | $205,512 | 26.6 min |
Frequently Asked Questions
Common questions about Romeoville, Illinois.
How many people live in Romeoville, Illinois?
About 36,499 people live in Romeoville, Illinois, in 12,144 households of 3.0 people on average. The median age is 37.8, close to the U.S. median of 37.3.
Is Romeoville, Illinois urban or rural?
Averaged over its land area, Romeoville, Illinois has 1,793 people per square mile, a density typical of urban and suburban areas. That is about 21 times the U.S. average of 86.
Is Romeoville, Illinois an affordable place to live?
The median home costs 3.1 times the median household income ($317,182 against $102,094), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $1,891 a month takes about 22% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
How common is a college degree in Romeoville, Illinois?
21.1% of adults in Romeoville, Illinois hold a bachelor's degree or higher (about 1 in 5), well below the U.S. share of 31.6%.
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