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CITY · 1990 CENSUS

Buffalo Grove

Illinois · 36,427 residents · 9.56 sq mi
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The short version

Buffalo Grove is home to 36,427 people in Illinois. 47% of adults hold a bachelor's degree, against 20% nationally. Households here earn about 74% more than in Illinois as a whole. 84% of homes are owner-occupied. Households take in $56,011 a year at the median, 86% more than the country as a whole. Median home value sits at $164,100.

At a glance
Wealthier
above the US median
US median: $30,130
Mid-age
median age 32.2
US median: 33.0
More educated
47% hold a bachelor's degree
US average: 20%
Stable housing
home values roughly flat, inflation adjusted
US median home: $93,722
Section 01

Population & growth

Total population
36,427
−15%vs 2000
vs 42,909 in 2000
1990 – 2025
Median age
32.2
−14%vs 2000
vs 37.4 in 2000
US average: 33.0
Land area
9.56 sq mi
Population, 1990 – 2024
36K38K40K42K44K19902000201020202024Buffalo Grove
202443K
1990201020202024
Age distribution, 1990
Under 59.5%(3,468)
US avg: 7.3%
5 to 98.6%(3,119)
US avg: 7.3%
10 to 147%(2,550)
US avg: 6.9%
15 to 195.4%(1,978)
US avg: 7.1%
20 to 244.6%(1,675)
US avg: 7.5%
25 to 3421.8%(7,950)
US avg: 17.5%
35 to 4421.1%(7,679)
US avg: 15.1%
45 to 5410.1%(3,685)
US avg: 10.2%
55 to 646.2%(2,264)
US avg: 8.5%
65 to 744%(1,447)
US avg: 7.3%
75 to 841.4%(503)
US avg: 4%
85 and over0.3%(109)
US avg: 1.2%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$56,011
−8%inflation adjusted, since 2000
vs $80,525 in 2000
US average: $30,130
1990 – 2024
Per capita income
$23,718
−35%vs 2000
vs $36,696 in 2000
US average: $14,340
Poverty rate
1.5%
−0.7 ptsvs 2000
vs 2.3% in 2000
US average: 13.2%
Section 03

Housing

Median home value
$164,100
+1%inflation adjusted, since 2000
vs $214,700 in 2000
US average: $93,722
1990 – 2024
Median gross rent
$754
−8%inflation adjusted, since 2000
vs $1,079 in 2000
US average: $450
Owner-occupied
83.8%
−3.3 ptsvs 2000
vs 87.1% in 2000
16.2% rent
Section 04

Race & ethnicity

2000
White, non-Hispanic86.5%(37,121)
Black0.7%(317)
Hispanic / Latino3.3%(1,425)
Asian8.4%(3,613)
Other0%
1990
White, non-Hispanic94.4%(34,383)
Black1.1%(407)
Hispanic / Latino1.5%(545)
Asian4.3%(1,568)
Other0.2%(69)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

Hispanic origin
Mexican3%(1,288)
Puerto Rican0.9%(383)
Cuban0.4%(170)
Peruvian0.4%(163)
Colombian0.3%(136)
Guatemalan0.2%(71)
Venezuelan0.1%(61)
Costa Rican0.1%(44)
Salvadoran0.1%(26)
+ 2 more hispanic origin groups with data
Asian origin
Asian Indian17.5%(7,523)
Korean4.1%(1,744)
Chinese4%(1,723)
Filipino1.7%(733)
Japanese0.7%(293)
Pakistani0.4%(163)
Mongolian0.3%(109)
Taiwanese0.2%(100)
Sri Lankan0.1%(57)
Thai0.1%(44)
Nepalese0.1%(44)
+ 2 more asian origin groups with data
Pacific Islander origin
Tongan0.1%(32)
Ancestry
German9%(3,875)
Polish7.1%(3,057)
Irish5.5%(2,364)
Russian5.5%(2,345)
Italian5.2%(2,213)
Ukrainian4.4%(1,884)
English3.6%(1,532)
American3.4%(1,466)
Swedish1.8%(765)
Bulgarian1.1%(468)
Hungarian0.8%(352)
Arab0.8%(338)
+ 35 more ancestry groups with data
Romanian0.7%(294)
French0.6%(267)
Norwegian0.6%(264)
Greek0.6%(240)
Scottish0.5%(223)
West Indian0.5%(222)
Dutch0.5%(220)
Czech0.4%(191)
Lithuanian0.4%(181)
British0.4%(159)
Latvian0.3%(139)
Haitian0.3%(137)
Austrian0.3%(127)
Danish0.3%(120)
Scotch-Irish0.2%(89)
Iraqi0.2%(74)
Armenian0.2%(73)
Serbian0.2%(69)
Jamaican0.1%(53)
Portuguese0.1%(52)
Slovak0.1%(51)
Welsh0.1%(49)
Israeli0.1%(43)
Egyptian0.1%(41)
Moroccan0.1%(40)
Syrian0.1%(37)
Swiss0.1%(36)
Iranian0.1%(31)
Brazilian0.1%(27)
Turkish0.1%(27)
Belgian0.1%(25)
Canadian0.1%(23)
Slovene0%(8)
Section 05

Education

Bachelor's degree or higher
47.4%
−8.5 ptsvs 2000
vs 55.9% in 2000
US average: 20.3%
High school or higher
94.5%
−0.8 ptsvs 2000
vs 95.3% in 2000
US average: 75.2%
Graduate degree
14.4%
−6.1 ptsvs 2000
vs 20.5% in 2000
US average: 7.1%
Section 06

Commute & transportation

Average commute
27.8 min
+29%vs 2000
vs 21.6 min in 2000
US average: 21.9
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status (2024)
Men 15+
Never married26.2%(4,357)
Married67.8%(11,258)
Widowed1.5%(250)
Divorced4.5%(748)
Women 15+
Never married24%(4,374)
Married59.8%(10,908)
Widowed7.3%(1,333)
Divorced8.9%(1,622)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

Uninsured
3.8%
−2.1 ptssince 2013
from 5.9% in 2013
US average: 8.4%
Employer-based
68.5%
−3.5 ptssince 2020
from 72.0% in 2020
US average: 54.8%
Direct-purchase
13.8%
+1.5 ptssince 2020
from 12.3% in 2020
US average: 13.8%
Medicare
14.9%
+1.1 ptssince 2020
from 13.8% in 2020
US average: 18.4%
Medicaid
9.6%
−0.2 ptssince 2020
from 9.8% in 2020
US average: 20.9%
VA health care
0.6%
−0.3 ptssince 2020
from 0.9% in 2020
US average: 2.2%
Any private
80.1%
−2.1 ptssince 2020
from 82.2% in 2020
US average: 67.1%
Any public
23.7%
+1.3 ptssince 2020
from 22.4% in 2020
US average: 36.7%

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)33.5%(274)
US avg: 26.4%
Gulf War (1990s)30.3%(248)
US avg: 24.3%
Vietnam era28.1%(230)
US avg: 33.1%
Korean War8.2%(67)
US avg: 4.5%
World War II1.1%(9)
US avg: 1%

Share of the 818 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
Drill deeper

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Head to head

Compare Buffalo Grove to nearby cities

BUFFALO GROVE VS
Long Grove
Income$250,001+346%
Home value$804,600+390%
Population8,343−81%
SEE FULL COMPARISON →
BUFFALO GROVE VS
Wheeling
Income$85,205+52%
Home value$266,200+62%
Population38,391−10%
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BUFFALO GROVE VS
Prospect Heights
Income$85,008+52%
Home value$346,500+111%
Population15,552−64%
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BUFFALO GROVE VS
Vernon Hills
Income$121,943+118%
Home value$412,300+151%
Population26,825−37%
SEE FULL COMPARISON →
Frequently asked

How many people live in Buffalo Grove, Illinois?

Buffalo Grove, Illinois has about 36,427 residents according to the 1990 Census.

What is the median household income in Buffalo Grove, Illinois?

The typical household in Buffalo Grove, Illinois earns about $56,011 a year. Half of households make more than that, and half make less.

Is Buffalo Grove, Illinois expensive?

In Buffalo Grove, Illinois, the median home is worth about $164,100, and the typical rent is about $754 a month.

How educated are people in Buffalo Grove, Illinois?

About 47.4% of adults age 25 and over in Buffalo Grove, Illinois hold a bachelor's degree or higher.

What is the poverty rate in Buffalo Grove, Illinois?

About 1.5% of people in Buffalo Grove, Illinois live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →