Northbrook, IL
Population 34,642 · Illinois
About Northbrook, IL
Northbrook is a mid-sized city in Illinois with a population of 34,642 residents. The median household income is $155,321 per year, which is above the national average. The median age in Northbrook is 49.2 years.
Housing in Northbrook has a median home value of $644,100 and median monthly rent of $2,334. Of the 14,490 total housing units, the majority are owner-occupied, with 11,512 owner-occupied and 1,784 renter-occupied units.
The unemployment rate in Northbrook is 3.2% and the poverty rate is 4.5%. 73.1% of residents hold a bachelor's degree or higher. The average commute time is 27.7 minutes.
How Northbrook Ranks in Illinois
Cost of Living in Northbrook, IL
Compared to national averages, Northbrook has a median household income of $155,321 (107% above the national median of $75,149). Home values average $644,100, which is 163% above the national median. Monthly rent at $2,334 is 101% above the US average of $1,163. Within Illinois, Northbrook's income is 107% above the state average of $75,072, and home values are 289% above the state median of $165,779.
Why Live in Northbrook, IL?
Northbrook offers a strong local economy with a median household income of $155,321, well above the national average, and a strong job market with an unemployment rate of just 3.2%, and a well-educated community where 73.1% of residents hold a bachelor’s degree or higher. Additionally, the city features a low poverty rate of 4.5%, better than the national average.
Potential considerations include a competitive housing market where the typical home costs $644,100. However, Northbrook’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
Northbrook has a population of 34,642 with a median age of 49.2 years. Compare Northbrook with other cities to see how it stacks up, or explore all cities in Illinois.
Similar Cities Near Northbrook
Cities in Illinois with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| Calumet City | 35,253 | $53,991 | $133,600 | Compare |
| Woodridge | 33,889 | $97,263 | $345,200 | Compare |
| Oswego | 35,463 | $119,881 | $319,000 | Compare |
| Addison | 35,470 | $87,587 | $318,000 | Compare |
| Glendale Heights | 32,864 | $82,232 | $249,000 | Compare |
| St. Charles | 32,733 | $115,350 | $369,700 | Compare |
| Rock Island | 36,758 | $57,292 | $118,400 | Compare |
| Hanover Park | 36,850 | $92,263 | $260,900 | Compare |
Demographics
Racial & Ethnic Composition
Economy & Education
Housing
Other Cities in Illinois
Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
Compare Northbrook With Other Cities
Frequently Asked Questions about Northbrook
What is the population of Northbrook, IL?
The population of Northbrook, IL is 34,642 according to the latest Census data.
What is the median household income in Northbrook?
The median household income in Northbrook, IL is $155,321 per year.
What is the median home value in Northbrook?
The median home value in Northbrook, IL is $644,100.
What is the average rent in Northbrook?
The median monthly rent in Northbrook, IL is $2,334.
What is the unemployment rate in Northbrook?
The unemployment rate in Northbrook, IL is 3.2%.