DuPage County, IL Population

Overview

934,094

Total Population

39.7

Median age

50.56%

Female population %

97.8:100

Gender ratio (M:F)

55-59 years

Largest age group

52.3

Total dependency ratio

White

Largest racial group

135,909

Hispanic population

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

TABLE OF CONTENTS

Age

DuPage County's population is old compared to the rest of the country:

The median age in DuPage County is 39.7, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
DuPage County's population under 18 was 22.77%, compared to the 22.51% nationwide.
DuPage County's elderly or the senior population (over 65 age) was 15.72% as compared to 16.04% nationwide.
Of the total population in DuPage County, 18.60% were under the age of 15, 18.70% aged 15 to 29, 46.97% aged 30 to 64, 13.87% aged 65 to 84, and 1.85% were 85 years of age and older.

There are 10,392 more females than males in DuPage County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 50.56% females and 49.44% males in DuPage County, IL.
The DuPage County, IL gender ratio is 97.8:100 i.e. 97.8 men to 100 women (0.978).
For male population, the largest age group is 55-59 years with a population of 33,513.
For the female population, the largest age group is 55-59 years with a population of 35,440.

DuPage County's population has become increasingly diverse:

Racial distribution of DuPage County population: 72.56% are White, 4.92% are Black or African American, 0.24% are American Indian and Alaska Native, 12.26% are Asian, 0.04% are Native Hawaiian and other Pacific Islander, 4% are some other race and 6% are multiracial.
DuPage County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 135,909 is Hispanic or Latino (of any race), and 798,185 (85.45% of the total population) is Non-Hispanic.
The largest racial group in DuPage County is White with a population of 677,738 (72.56% of the total population).

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

The peak population was 933,976 in the year 2009
From 2000 to 2010, DuPage County's population increased by 11,027 (1.22%), as compared to the national growth of 9.63%.
From 2010 to 2020, DuPage County's population increased by 13,248 (1.44%), 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, DuPage County's population was lowest in year 2000 at 906,969.