Oak Brook, IL Population

Overview

8,178

Total Population

53.9

Median age

52.73%

Female population %

89.7:100

Gender ratio (M:F)

70-74 years

Largest age group

107.0

Total dependency ratio

White

Largest racial group

37

Hispanic population

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

TABLE OF CONTENTS

Age

Oak Brook's population is old compared to the rest of the country:

The median age in Oak Brook is 53.9, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Oak Brook's population under 18 was 20.37%, compared to the 22.51% nationwide.
Oak Brook's elderly or the senior population (over 65 age) was 35.01% as compared to 16.04% nationwide.
Of the total population in Oak Brook, 16.69% were under the age of 15, 11.82% aged 15 to 29, 36.48% aged 30 to 64, 29.85% aged 65 to 84, and 5.16% were 85 years of age and older.

There are 446 more females than males in Oak Brook:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 52.73% females and 47.27% males in Oak Brook, IL.
The Oak Brook, IL gender ratio is 89.7:100 i.e. 89.7 men to 100 women (0.897).
For male population, the largest age group is 55-59 years with a population of 521.
For the female population, the largest age group is 70-74 years with a population of 382.

Oak Brook's population has become increasingly diverse:

Racial distribution of Oak Brook population: 63.43% are White, 0.55% are Black or African American, 30.25% are Asian, 0.88% are some other race and 4.89% are multiracial.
Oak Brook's racial breakdown clearly shows that there is an absolute majority of White population in the village.
By ethnicity, 37 is Hispanic or Latino (of any race), and 7,808 (95.48% of the total population) is Non-Hispanic.
The largest racial group in Oak Brook is White with a population of 5,187 (63.43% of the total population).

Oak Brook's population has already reached its peak and is showing a trend of decline:

The peak population was 8,659 in the year 2009
From 2000 to 2010, Oak Brook's population decreased by 486 (5.75%), as compared to the national growth of 9.63%.
From 2010 to 2020, Oak Brook's population increased by 179 (2.25%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
Between the year 2000 and 2022, Oak Brook's population was lowest in year 2010 at 7,970.