Arlington Heights is home to 76,005 people in Illinois. 60% of adults hold a bachelor's degree, against 36% nationally. That puts it in the top 4% of US cities for household income. That is roughly 40% ahead of the Illinois median. Density works out to 4,575 people per square mile. At a median age of 42.6, this is an older place than the country as a whole.
At a glance
Wealthier
median household income $116,723, above the US median
US median: $82,259
Older
median age 42.6
US median: 38.9
More educated
60% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Arlington Heights
What changed most since 1990
Adults with a bachelor's degree39.5% → 60.4%(+20.9 pts)US over the same years: +15.3 pts
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)15.1%(361)
US avg: 26.4%
Gulf War (1990s)12.7%(303)
US avg: 24.3%
Vietnam era39.1%(933)
US avg: 33.1%
Korean War10.5%(251)
US avg: 4.5%
World War II4.3%(103)
US avg: 1%
Share of the 2,385 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Arlington Heights, decade by decade
Arlington Heights population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
75,460
$123,198
$405,372
39.5%
16.7
2000
76,031
$123,521
$406,047
46.5%
28.3
2010
75,101
$108,263
$525,078
50.7%
34.5
2020
77,676
$121,472
$426,638
58.1%
47.5
2024
76,005
$116,723
$414,500
60.4%
52.1
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
