Northbrook Flag

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 2026 population of 34,597. Northbrook is currently declining at a rate of -0.42% annually and its population has decreased by -1.6% since the most recent census, which recorded a population of 35,159 in 2020.

The median household income in Northbrook is $157,782 with a poverty rate of 4.34%. The median age in Northbrook is 49.6 years: 48.2 years for males, and 51.3 years for females. For every 100 females there are 96.4 males.

34.6K
Total Population
2,613
Density (mi²)
-147 -0.42%
Growth

Northbrook Population

Northbrook Population

Year ↓
Population
Growth
Annual Change
202634,597-147-0.42%
202534,7441710.49%
202434,5732610.76%
202334,312600.18%
202234,252-376-1.09%
202134,628-641-1.82%
202035,1592,2336.78%
201932,926-179-0.54%
201833,105-219-0.66%
201733,324-188-0.56%
201633,512-136-0.4%
201533,648-59-0.18%
201433,707530.16%
201333,6541170.35%
201233,5371380.41%
201133,3991630.49%
201033,236660.2%
200033,4351,1273.49%
199032,3081,5304.97%
198030,7785,35621.07%
197025,42213,787118.5%
196011,6358,287247.52%
19503,34800%

Median Age

Overall: 49.6 years
Female: 51.3 years
Male: 48.2 years

Northbrook Adults

There are 27,266 adults, (9,188 of whom are seniors) in Northbrook.

Sex Ratio

Female: 17,605 (50.9%)
Male: 16,980 (49.1%)

Demographics

The racial composition of Northbrook includes 75.87% White, 16.19% Asian, and smaller percentages for Black or African American, other race, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White26,23975.87%
Asian5,60016.19%
Two or more races1,8735.42%
Black or African American6261.81%
Other race2410.7%
Native American60.02%
Race
Population ↓
Percentage (of total)
Two or more races9482.74%
White7182.08%
Other race1960.57%
Asian60.02%
Race
Population ↓
Percentage (of total)
White25,52173.79%
Asian5,59416.17%
Two or more races9252.67%
Black or African American6261.81%
Other race450.13%
Native American60.02%

Northbrook Marital Status

Economics and Income Statistics

Northbrook's average per capita income is $98,613. Household income levels show a median of $157,782. The poverty rate stands at 4.34%.

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$224,079-
Families$211,168$270,152
Households$157,782$222,214
Non Families$68,561$88,081

$98,613

Average Income

$157,782

Median Household Income

4.34%

Poverty Rate

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)