Arlington Heights, Illinois Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Arlington Heights, 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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A
Health Above average
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A
Income Above average
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A+
Education Top grade
Source: Map AI Methodology
Population
| Metric | Arlington Heights | Illinois Avg | U.S. Average |
|---|---|---|---|
| Population | 77,229 | 12,692,444 | 337,468,954 |
| Population density (per sq mi) | 4640.3 | 219.1 | 86.4 |
| Population growth (%/yr) | -0.27% | -0.16% | 0.59% |
| Median age | 43.5 | 37.4 | 37.3 |
| Households | 31,842 | 5,035,584 | 130,235,071 |
Population in Arlington Heights declined by 0.2% from 2009 to 2024, reaching 77,229 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Arlington Heights is Gen X, aged 45–60, at 21.9% of residents. That is 1.5 points above Illinois as a whole.
- Gen Z 13–28 12,475 16.2% -5.1 pts
- Millennials 29–44 16,637 21.5% -0.3 pts
- Gen X 45–60 16,941 21.9% +1.5 pts
- Boomers 61–79 13,975 18.1% +1.2 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 50.9% of the people living in Arlington Heights and men 49.1%.
- Women 50.9% Illinois 50.6%
- Men 49.1% Illinois 49.4%
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100% of everyone living in Arlington Heights
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Economy
Arlington Heights has a the economy index of A, which means it is very prosperous.
| Metric | Arlington Heights | Illinois Avg | U.S. Average |
|---|---|---|---|
| Median household income | $114,070 | $84,042 | $80,455 |
| Income growth (%/yr) | 4.71% | 4.46% | 4.80% |
| Unemployment rate | 3.6% | 5.8% | 5.2% |
The median household income in Arlington Heights is about 36% higher than in Illinois.
Housing
| Metric | Arlington Heights | Illinois Avg | U.S. Average |
|---|---|---|---|
| Median home price | $240,337 | $149,936 | $248,835 |
| Median rent | $1,691 | $1,274 | $1,407 |
| Homeownership rate | 71.8% | 67.1% | 65.2% |
The median home price in Arlington Heights is about 11.8 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,691 per month for that long.
Commute Time & Mobility
Commuters in Arlington Heights spend about 48 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 199 hours, about 8.3 full days, spent commuting.
| Metric | Arlington Heights | Illinois Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 23.9 | 23.6 | 22.4 |
| Round-trip commute (min) | 47.8 | 47.3 | 44.8 |
| Yearly time spent (hours) | 199 | 197 | 187 |
| Estimated yearly cost | $6,172 | $6,104 | $5,790 |
| Work from home | 24.5% | 15.9% | 15.0% |
| Highway traffic (vehicles/day) | 16,933 | 7,977 | 8,813 |
| Local road traffic (vehicles/day) | 3,063 | 1,547 | 1,355 |
The average commute time in Arlington Heights is about the same as 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
Arlington Heights has a education index of A+, which means it is exceptionally educated.
| Metric | Arlington Heights | Illinois Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 54.8% | 34.1% | 31.6% |
| Average household size | 2.40 | 2.46 | 2.53 |
Health
Arlington Heights has a health index of A, which means it is very healthy.
| Metric | Arlington Heights | Illinois Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 81.5 | 77.9 | 78.3 |
| Self-rated poor health | 9.4% | 15.6% | 16.3% |
| Smokers | 10.2% | 19.2% | 19.0% |
Arlington Heights, IL Compared With Nearby Cities
Arlington Heights, IL is the largest of the 5 cities compared here, 77,229 residents against a local median of 45,195. Where Arlington Heights, IL breaks from the cities next to it is median home price, sitting 29% below the local median of $339,861 at $240,337.
Median household income tells the same story from another angle: $114,070 against a local median of $97,911, 17% above it. The one measure here that carries a verdict is median household income, and at 17% above the local median it puts Arlington Heights, IL at the better end of the local range. The cities themselves spread $158,050 on median home price, so Arlington Heights, IL sits at one end of an already wide local range rather than apart from it. Arlington Heights, IL has the 4th highest median home price of the 5 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Arlington Heights, IL | 77,229 | $114,070 #1/5 | $240,337 #4/5 | 23.9 min #4/5 |
| Rolling Meadows, IL | 24,014 | $95,351 | $319,595 | 22.5 min |
| Mount Prospect, IL | 54,782 | $100,972 | $360,128 | 22.8 min |
| Palatine, IL | 58,624 | $100,471 | $387,637 | 25.6 min |
| Wheeling, IL | 35,608 | $86,844 | $229,587 | 22.4 min |
Frequently Asked Questions
Common questions about Arlington Heights, Illinois.
How many people live in Arlington Heights, Illinois?
About 77,229 people live in Arlington Heights, Illinois, in 31,842 households of 2.4 people on average. The median age is 43.5, so residents are older than the U.S. median of 37.3 by about 6 years.
How densely populated is Arlington Heights, Illinois?
Averaged over its land area, Arlington Heights, Illinois has 4,640 people per square mile, a density typical of a city. That is about 54 times the U.S. average of 86.
How affordable is housing in Arlington Heights, Illinois?
The median home costs 2.1 times the median household income ($240,337 against $114,070), compared with 3.1 times nationally. That is within the traditional rule of thumb of about 3 times income. Median rent of $1,691 a month takes about 18% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
Is unemployment high in Arlington Heights, Illinois?
Unemployment in Arlington Heights, Illinois is only 3.6%, well below the U.S. rate of 5.2%, a sign of a tight labor market where employers compete for workers.
How educated are people in Arlington Heights, Illinois?
54.8% of adults in Arlington Heights, Illinois hold a bachelor's degree or higher (about 5 in 10), well above the U.S. share of 31.6%.
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