Long Grove is home to 8,305 people in Illinois. Households here earn about 200% more than in Illinois as a whole. Households take in $250,000+ a year at the median, 204% more than the country as a whole. This is an unusually credentialed place: 76% of adults have a four-year degree. 96% of homes are owner-occupied. Median rent is $3,500+ a month.
At a glance
Wealthier
median household income $250,000+, above the US median
US median: $82,259
Older
median age 49.2
US median: 38.9
More educated
76% hold a bachelor's degree
US average: 36%
More affordable
home values down 20%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Long Grove
What changed most since 1990
Median home value (2024 dollars)$1,008,269 → $804,600(−20%)US over the same years: +67%
Median age36.3 → 49.2(+12.9 years)US over the same years: +6.0 years
Population4,740 → 8,305(+75%)US over the same years: +35%
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)7.8%(18)
US avg: 26.4%
Gulf War (1990s)21.3%(49)
US avg: 24.3%
Vietnam era46.1%(106)
US avg: 33.1%
Korean War12.2%(28)
US avg: 4.5%
World War II0%(0)
US avg: 1%
Share of the 230 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
Long Grove, decade by decade
Long Grove 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
4,740
$258,238
$1,008,269
53.0%
12.8
2000
6,735
$269,878
$1,009,197
57.1%
26.4
2010
8,043
$234,346
$1,088,135
67.1%
38.9
2020
8,366
$251,120
$790,977
67.7%
58.2
2024
8,305
$250,000+
$804,600
75.7%
51.1
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.
Long Grove, Illinois has about 8,305 residents according to the 2024 American Community Survey.
What is the median household income in Long Grove, Illinois?
The typical household in Long Grove, Illinois earns $250,000 or more a year. The Census Bureau does not publish medians above that cap, so the exact figure is not known.
Is Long Grove, Illinois expensive?
In Long Grove, Illinois, the median home is worth about $804,600, and the typical rent is $3,500 or more a month.
How educated are people in Long Grove, Illinois?
About 75.7% of adults age 25 and over in Long Grove, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Long Grove, Illinois?
About 1.2% of people in Long Grove, Illinois live below the federal poverty line.
Has Long Grove, Illinois grown since 1990?
Yes, Long Grove, Illinois has grown since 1990. The population has added about 3,565 residents, a change of about 75 percent over that period.
