Oak Brook is considered a Small Town with a population of 8,077 and 4,112 businesses. 55 in 2018 were added to the Oak Brook Chamber of Commerce business directory which was less than 2017 which had 56.
The economy of Oak Brook employs 3,812 people and has an unemployment rate of 2.8%. Some of the largest industries in Oak Brook are Professional Services (123),Attorneys (122), and Entertainment Agencies & Bureaus (118).
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