US Census Data

Northbrook

In Cook County, Illinois.

Population
34,642
+3.9%’19–’23
Median household income
$155,321
+24.4%’19–’23
Median home value
$644,100
+20.4%’19–’23

Northbrook is a community in Cook County, Illinois, home to 34,642 residents. At $155,321, its median household income sits above Cook County's $81,797.

From 2019 to 2023, Northbrook's population grew 3.9% from 33,343 to 34,642, while its median home value rose 20.4% from $534,800 to $644,100.

The median gross rent is $2,334. 73.1% of adults 25 and older hold a bachelor's degree or higher.

Demographics

ACS 2019–2023
Population
34,642
Median age
49.2 yrs
Median household income
$155,321
Median home value
$644,100
Median gross rent
$2,334
Housing units
14,490
Homeownership rate
86.6%
Bachelor's degree or higher
73.1%
Unemployment rate
3.2%

Trends

ACS 5-year · 2019–2023
Population
33,34334,642
Median household income
$124,863$155,321
Median home value
$534,800$644,100
Median gross rent
$2,056$2,334
YearPopulationMedian household incomeMedian home valueMedian gross rent
201933,343$124,863$534,800$2,056
202033,216$128,883$563,200$1,949
202135,108$143,506$571,400$1,930
202234,950$150,236$621,600$1,998
202334,642$155,321$644,100$2,334

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

CountShare
Under 51,6554.8%
5 to 175,71216.5%
18 to 241,9415.6%
25 to 342,2706.6%
35 to 443,97011.5%
45 to 544,93414.2%
55 to 645,29815.3%
65 to 744,51713.0%
75 and over4,34512.5%

Race & ethnicity

CountShare
White (non-Hispanic)25,34473.2%
Black or African American9522.7%
American Indian & Alaska Native00.0%
Asian5,72616.5%
Native Hawaiian & Pacific Islander00.0%
Some other race500.1%
Two or more races7182.1%
Hispanic or Latino (any race)1,8525.3%

Educational attainment (age 25+)

CountShare
No high school diploma6952.7%
High school graduate2,3929.4%
Some college or associate's3,71814.7%
Bachelor's degree8,40233.2%
Graduate or professional degree10,12740.0%

Commute to work

Mean travel time to work
28 min

How workers get to work

CountShare
Drove alone9,33956.9%
Carpooled7594.6%
Public transit1,1547.0%
Walked3682.2%
Bicycle810.5%
Worked from home4,49727.4%
Other means2031.2%

Travel time

CountShare
Under 15 min3,24627.3%
15 to 29 min3,74531.5%
30 to 44 min2,26519.0%
45 to 59 min1,20010.1%
60+ min1,44812.2%

Households

Average household size
2.55
Poverty rate
4.5% (1,529 of 34,035)
CountShare
Family households9,72573.1%
Nonfamily households3,57126.9%

Housing

Median year structure built
1975

Occupancy

CountShare
Occupied13,29691.8%
Vacant1,1948.2%

Tenure (of occupied units)

CountShare
Owner-occupied11,51286.6%
Renter-occupied1,78413.4%

Units in structure

CountShare
1-unit, detached9,63066.5%
1-unit, attached1,73712.0%
2 to 4 units4713.3%
5 to 19 units4102.8%
20 or more units2,19515.1%
Mobile home & other470.3%

Geography

Place GEOID
1753481
Type (LSAD)
47
Land area
13 sq mi
Water area
0.07 sq mi
Center point
42.1287, -87.8352

Compare with nearby cities

5

Illinois rankings

21

Other places in Cook County

118