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 and multiracial populations.

Population by Race

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%

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