Buffalo Grove

County:: Lake County
County Seat:: No
Area (mi²):: 9.559
State:: Illinois

Buffalo Grove is a village located in Lake County, Illinois. Buffalo Grove has a 2025 population of 42,080. Buffalo Grove is currently declining at a rate of -0.48% annually and its population has decreased by -2.33% since the most recent census, which recorded a population of 43,085 in 2020.

The average household income in Buffalo Grove is $158,813 with a poverty rate of 6.54%. The median age in Buffalo Grove is 42.1 years: 42.2 years for males, and 42.1 years for females.

Demographics

The racial composition of Buffalo Grove includes 61.56% White, 28.24% Asian, 3.78% Black or African American, and smaller percentages for other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Asian

Black or African American

Two or more races

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	26,363	61.56%
Asian	12,094	28.24%
Black or African American	1,617	3.78%
Two or more races	1,523	3.56%
Other race	882	2.06%
Native American	305	0.71%
Native Hawaiian or Pacific Islander	40	0.09%

Buffalo Grove Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Buffalo Grove's average per capita income is $79,852. Household income levels show a median of $129,820. The poverty rate stands at 6.54%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$163,720	-
Families	$149,457	$181,760
Households	$129,820	$158,813
Non Families	$63,638	$86,432

$79,852

Average Income

$129,820

Median Household Income

6.54%

Poverty Rate