Businesses for Sale | Oak Brook, Illinois

Discover business opportunities, in or around Oak Brook, with well-established brands, who are looking for people like you to help them grow.
As of the 2010 United States Census, Oak Brook, located in The Prairie State had a total population of 7,967 people.

Top Franchise Opportunities in Oak Brook, Illinois on Franchise.com for 2026

City Statistics and Other Information About Oak Brook

Demographics

From a total population of 7,967, Oak Brook has a median age of 54. The average age of males, in Oak Brook, is 53 while the average age of females is 55. When you compare this to median age of Illinois, Oak Brook is 17.4 years younger.

Income

The median income of individuals, in Oak Brook, is $81,213 while the average household income is $148,173. When comparing the median income of people living in Oak Brook to the rest of Illinois, the average income in Oak Brook is -$51,194 less.

Additional Information

ZIP code : 60523
County Name : DuPage County

Businesses for Sale | Oak Brook, Illinois

Top Franchise Opportunities in Oak Brook, Illinois on Franchise.com for 2026

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