Village · Illinois
Long Grove, Illinois
Long Grove, village, in Lake County, Illinois. Long Grove had 8,343 residents on July 1, 2025 by the Census Bureau's estimate, down 0.6% since 2020; the 2020 Census counted 8,366 and the ACS 2020-2024 5-year estimates put it at 8,305 (±62). GEOID 1744524.
Residents, July 2025 estimate
8,343
Census Bureau estimate (no margin published)
2020 Census count: 8,366 · ACS 2020-2024: 8,305 ±62
Median household income
$250,000 or more
The survey's top or bottom value; no margin is published
Illinois: $83,390
Median home value
$804,600
±$50,264 (90% margin)
Illinois: $263,300
Median gross rent
$3,500 or more
The survey's top or bottom value; no margin is published
Illinois: $1,274
Where is Long Grove and what county is it in?
Long Grove is a village in Lake County, Illinois. It covers 12.4 square miles of land, 675 residents per square mile in 2020.
Long Grove is in the Chicago-Naperville-Elgin, IL-IN metropolitan statistical area, which takes in 13 counties (Census Bureau delineation, July 2023).
Long Grove lies mostly within Vernon Township and reaches into Ela Township and Fremont Township, towns or townships with their own local government (2020 census blocks).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Long Grove, and is it growing?
The Census Bureau estimates that 8,343 people lived in Long Grove on July 1, 2025, down 0.6% since 2020, in line with Illinois (−0.8%). The 2020 Census counted 8,366 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 8,305 (±62).
| Measure | Long Grove | Lake County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 8,305 ±62 | 714,223 | +342 |
| Households | 2,699 ±190 | 258,455 | +330 |
| Average household size | 2.91 ±0.21 | 2.69 | −0.31 |
| Housing units | 2,784 ±197 | 270,618 | no clear change |
Long Grove's population since 2000
From 6,735 in 2000 to 8,343 in 2025: up 23.9%. The 2000, 2010 and 2020 figures are census counts, each for Long Grove as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Long Grove?
The median resident of Long Grove is 49.2 years old; 21.0% are under 18 and 20.7% are 65 or older. The largest group is non-Hispanic white residents at 75.6%, then non-Hispanic Asian residents at 12.3%. 18.4% of residents were born outside the United States.
| Measure | Long Grove | Lake County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 49.2 ±5.4 | 39.1 | no clear change |
| Under 18 years | 21.0% ±3.5 pts | 23.3% | – |
| 65 years and over | 20.7% ±3.9 pts | 15.8% | – |
| Male | 51.8% ±2.8 pts | 50.3% | – |
| Hispanic or Latino (any race) | 4.0% ±2.0 pts | 24.9% | no clear change |
| White alone, not Hispanic | 75.6% ±4.9 pts | 56.2% | no clear change |
| Black or African American alone, not Hispanic | 3.1% ±2.1 pts | 6.3% | – |
| Asian alone, not Hispanic | 12.3% ±3.7 pts | 8.6% | −5.7 pts |
| American Indian and Alaska Native alone, not Hispanic | 0.1% ±0.2 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.4 pts | 0.0% | – |
| Two or more races, not Hispanic | 4.9% ±3.1 pts | 3.3% | – |
| Some other race alone, not Hispanic | 0.0% ±0.4 pts | 0.6% | – |
| Born outside the United States | 18.4% ±3.4 pts | 19.8% | no clear change |
| Speak a language other than English at home (age 5+) | 17.4% ±4.4 pts | 31.4% | – |
| Civilian veterans (age 18+) | 3.5% ±1.4 pts | 4.7% | – |
| With a disability | 6.9% ±2.1 pts | 9.8% | – |
| No health insurance coverage | 1.4% ±1.0 pts | 6.9% | – |
| High school graduate or higher (age 25+) | 98.9% ±0.5 pts | 90.6% | – |
| Bachelor's degree or higher (age 25+) | 75.7% ±4.2 pts | 47.7% | no clear change |
| Graduate or professional degree (age 25+) | 33.1% ±4.9 pts | 20.1% | – |
| Lived in the same house a year earlier | 95.7% ±1.7 pts | 88.4% | – |
| Moved from another state in the past year | 0.8% ±0.8 pts | 2.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Long Grove earn?
Half of Long Grove's 2,699 households earn less than $250,000 or more a year (), against $110,416 in Lake County and $83,390 in Illinois. In 2015-2019 it was $250,000 or more in 2024 dollars; the margins of error cannot tell the two periods apart.
| Measure | Long Grove | Lake County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $250,000 or more | $110,416 | no clear change |
| Mean household income | $355,039 ±$47,533 | $155,726 | – |
| Per capita income | $117,776 ±$15,961 | $57,153 | no clear change |
| People below the poverty line | 1.2% ±1.0 pts | 8.3% | – |
| Children under 18 below the poverty line | 0.9% ±1.3 pts | 11.5% | – |
| Households receiving SNAP | 0.0% ±1.4 pts | 9.4% | – |
| Households with a computer | 99.0% ±1.2 pts | 97.2% | – |
| Households with a broadband subscription | 98.4% ±1.4 pts | 94.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Long Grove?
Owners occupy 96.3% of Long Grove's occupied homes and renters 3.7%. The median owner-occupied home is valued at $804,600 by its owner (±$50,264). The median renter pays $3,500 or more a month including utilities.
| Measure | Long Grove | Lake County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $804,600 ±$50,264 | $345,700 | no clear change |
| Median gross rent | $3,500 or more | $1,477 | – |
| Renters paying 35% or more of income on rent | 50.0% ±37.7 pts | 40.1% | – |
| Median monthly owner costs, with a mortgage | $4,000 or more | $2,503 | – |
| Owner-occupied homes | 96.3% ±2.3 pts | 74.8% | no clear change |
| Renter-occupied homes | 3.7% ±2.3 pts | 25.2% | – |
| Housing units | 2,784 ±197 | 270,618 | no clear change |
| Homeowner vacancy rate | 0.0% ±1.4 pts | 0.9% | – |
| Rental vacancy rate | 28.6% ±30.0 pts | 3.7% | – |
| Single-family detached homes | 98.5% ±1.6 pts | 66.6% | – |
| Mobile homes | 0.0% ±1.3 pts | 1.6% | – |
| Built 2020 or later | 0.0% ±1.3 pts | 0.6% | – |
| Built 2010 to 2019 | 3.3% ±2.2 pts | 4.9% | – |
| Built 1939 or earlier | 0.3% ±0.4 pts | 8.4% | – |
| Households with no vehicle | 1.0% ±1.2 pts | 4.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Long Grove building?
Builders took permits for 9 new housing units in Long Grove in 2025 (9 in single-family houses), 1.1 per 1,000 residents against 1.5 across Illinois.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Long Grove work and get to work?
58.2% of Long Grove's workers drive alone and 34.8% work from home. The average trip to work takes 33.5 minutes. The unemployment rate in 2020-2024 averaged 2.1%.
| Measure | Long Grove | Lake County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 63.6% ±3.2 pts | 68.2% | – |
| Unemployment rate | 2.1% ±1.3 pts | 5.2% | no clear change |
| Drove alone to work | 58.2% ±7.0 pts | 65.7% | – |
| Carpooled | 3.1% ±2.2 pts | 8.5% | – |
| Public transportation | 2.6% ±1.9 pts | 2.7% | – |
| Walked | 0.1% ±0.2 pts | 2.1% | – |
| Worked from home | 34.8% ±6.2 pts | 19.5% | +21.5 pts |
| Mean travel time to work | 33.5 min ±2.9 | 28.5 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Long Grove?
No census tract lies mostly in Long Grove; 9 tracts reach into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 8645.11Lake County | 7,060 | $130,156 |
| Tract 8644.03Lake County | 6,189 | $230,857 |
| Tract 8645.15Lake County | 3,045 | $174,545 |
| Tract 8644.02Lake County | 8,130 | $198,291 |
| Tract 8645.17Lake County | 3,066 | $205,142 |
| Tract 8645.12Lake County | 4,752 | $200,670 |
| Tract 8645.18Lake County | 5,051 | $205,759 |
| Tract 8641.07Lake County | 5,493 | $129,094 |
| Tract 8641.08Lake County | 5,411 | $101,111 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Long Grove) · Census block assignment files
How does Long Grove compare with other places in Illinois?
By the Census Bureau's July 2025 estimates, Long Grove is the 3,640th-most populous of the 19,476 U.S. incorporated places that have one and the 257th-most populous of 1,294 in Illinois.
Long Grove ranks 1st of 1,380 places in Illinois with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 257th | 1,294 |
| Growth 2020-2025 (PEP) | 371st | 1,347 |
| Residents per square mile | 737th | 1,383 |
| Median household income | 1st | 1,380 |
| Per capita income | 6th | 1,383 |
| Median home value | 13th | 1,379 |
| Median gross rent | 1st | 1,280 |
| Bachelor's degree or higher | 20th | 1,369 |
| Median age | 109th | 1,383 |
| Owner-occupied share | 54th | 1,382 |
| Work from home | 10th | 1,015 |
| Travel time to work | 107th | 1,382 |
Long Grove's figures with every place in Illinois (CSV)
Every place in Illinois, sortable · Compare Long Grove with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Long Grove?
20 of the 57 figures for Long Grove on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Long Grove are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Long Grove.