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CITY · 2000 CENSUS

Buffalo Grove

Illinois · 42,909 residents · 9.56 sq mi
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The short version

With 42,909 people, Buffalo Grove is a city in Illinois. 56% of adults hold a bachelor's degree, against 24% nationally. That is roughly 73% ahead of the Illinois median. Owners hold 87% of the housing stock. Households take in $80,525 a year at the median, 89% more than the country as a whole. Median home value sits at $214,700.

At a glance
Wealthier
above the US median
US median: $42,589
Older
median age 37.4
US median: 35.2
More educated
56% hold a bachelor's degree
US average: 24%
Stable housing
home values roughly flat, inflation adjusted
US median home: $120,530
Section 01

Population & growth

42,909
+18%since 1990
from 36,427 in 1990
1990 – 2025
37.4
+16%since 1990
from 32.2 in 1990
US average: 35.2
Land area
9.56 sq mi
Population, 19902024
36K38K40K42K44K19902000201020202024Buffalo Grove
202443K
1990201020202024
Age distribution, 2000
Under 56.6%(2,827)
US avg: 6.8%
5 to 98.2%(3,509)
US avg: 7.3%
10 to 149%(3,845)
US avg: 7.3%
15 to 196.9%(2,969)
US avg: 7.2%
20 to 243.5%(1,513)
US avg: 6.7%
25 to 3411.7%(5,017)
US avg: 14.2%
35 to 4420.5%(8,780)
US avg: 16%
45 to 5416.8%(7,222)
US avg: 13.4%
55 to 647.8%(3,344)
US avg: 8.6%
65 to 745.2%(2,223)
US avg: 6.5%
75 to 843%(1,289)
US avg: 4.4%
85 and over0.9%(371)
US avg: 1.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

$80,525
+9%inflation adjusted, since 1990
from $56,011 in 1990
US average: $42,589
1990 – 2024
$36,696
+55%since 1990
from $23,718 in 1990
US average: $21,522
2.3%
+0.7 ptssince 1990
from 1.5% in 1990
US average: 12.4%
Section 03

Housing

$214,700
−1%inflation adjusted, since 1990
from $164,100 in 1990
US average: $120,530
1990 – 2024
$1,079
+9%inflation adjusted, since 1990
from $754 in 1990
US average: $602
87.1%
+3.3 ptssince 1990
from 83.8% in 1990
12.9% rent
Section 04

Race & ethnicity

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

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

55.9%
+8.5 ptssince 1990
from 47.4% in 1990
US average: 24.4%
High school or higher
95.3%
+0.8 ptssince 1990
from 94.5% in 1990
US average: 80.3%
20.5%
+6.1 ptssince 1990
from 14.4% in 1990
US average: 8.8%
Section 06

Commute & transportation

21.6 min
−22%since 1990
from 27.8 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status
Men 15+
Never married23.1%(3,605)
Married70.1%(10,921)
Widowed1.7%(263)
Divorced5.1%(791)
Women 15+
Never married18.5%(3,152)
Married65.5%(11,166)
Widowed6.8%(1,166)
Divorced9.1%(1,559)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

3.8%
−2.1 ptssince 2013
from 5.9% in 2013
US average: 8.4%
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%
14.9%
+1.1 ptssince 2020
from 13.8% in 2020
US average: 18.4%
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
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Frequently asked

How many people live in Buffalo Grove, Illinois?

Buffalo Grove, Illinois has about 42,909 residents according to the 2000 Census.

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

The typical household in Buffalo Grove, Illinois earns about $80,525 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 $214,700, and the typical rent is about $1,079 a month.

How educated are people in Buffalo Grove, Illinois?

About 55.9% 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 2.3% of people in Buffalo Grove, Illinois live below the federal poverty line.

Has Buffalo Grove, Illinois grown since 1990?

Yes, Buffalo Grove, Illinois has grown since 1990. The population has added about 6,482 residents, a change of about 18 percent over that period.

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

How we source and harmonize this data →