Northbrook

County:: Cook County
County Seat:: No
Area (mi²):: 13.243
State:: Illinois

Northbrook is a village located in Cook County, Illinois. Northbrook has a 2025 population of 33,225. Northbrook is currently declining at a rate of -1.12% annually and its population has decreased by -5.36% since the most recent census, which recorded a population of 35,105 in 2020.

The average household income in Northbrook is $218,418 with a poverty rate of 4.49%. The median age in Northbrook is 49.2 years: 47.9 years for males, and 50.1 years for females.

Demographics

The racial composition of Northbrook includes 75.45% White, 16.55% Asian, and smaller percentages for Black or African American, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Asian

Two or more races

Black or African American

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	26,138	75.45%
Asian	5,732	16.55%
Two or more races	1,578	4.56%
Black or African American	952	2.75%
Other race	242	0.7%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Northbrook Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Northbrook's average per capita income is $92,533. Household income levels show a median of $155,321. The poverty rate stands at 4.49%.

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	$219,321	-
Families	$206,150	$264,534
Households	$155,321	$218,418
Non Families	$63,472	$89,654

$92,533

Average Income

$155,321

Median Household Income

4.49%

Poverty Rate