DuPage County Population

1840–2026

935.95K

2026 projection

0.5% since 2020 (increase)

0200K400K600K800K1M1840186018801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for DuPage County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026935,945+1,6470.18%
2025934,298+1,6470.18%
2024932,651+5,2510.57%
2023927,400+3,2220.35%
2022924,178-3,4420.37%
2021927,620-3,8530.41%
2020931,473+8,7120.94%
2019922,761-5,0470.54%
2018927,808-2,7610.30%
2017930,569-8390.09%

Showing 10 of 33 years.

DuPage County Demographics

40.2median age

Median age

Female41.3 yrs
Male39.1 yrs

Adults

723,949
161,240 seniors (65+) · 22% of adults562,709 other adults

Sex

Female 50.5% · 469,502Male 49.5% · 460,522

Population by age

MaleFemale85+ years, male: 6,37585+ years, female: 11,89680–84 years, male: 7,56880–84 years, female: 10,42475–79 years, male: 12,89175–79 years, female: 16,00170–74 years, male: 19,97370–74 years, female: 21,48165–69 years, male: 25,85065–69 years, female: 28,78160–64 years, male: 29,95360–64 years, female: 31,45655–59 years, male: 31,08055–59 years, female: 32,38350–54 years, male: 30,07850–54 years, female: 30,40345–49 years, male: 29,03245–49 years, female: 28,88040–44 years, male: 31,43740–44 years, female: 31,29135–39 years, male: 33,25635–39 years, female: 31,48130–34 years, male: 29,98230–34 years, female: 29,10925–29 years, male: 28,39325–29 years, female: 27,48720–24 years, male: 27,61720–24 years, female: 27,23715–19 years, male: 31,12815–19 years, female: 29,12610–14 years, male: 29,57310–14 years, female: 29,5135–9 years, male: 30,0765–9 years, female: 27,2310–4 years, male: 26,2600–4 years, female: 25,32285+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–410K10K20K20K30K30K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 9,300 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

DuPage County Income

$112,096median household income

Median household income

$112,096

Half of households earn more, half earn less

Median earnings

$67,696

Typical yearly pay for a worker 25 or older.

Poverty rate

6.6%

About 1 in 15 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

DuPage County Marital Status

55% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married55%57%53%
Never married31%34%28%
Divorced8%7%10%
Widowed5%2%8%
Separated<1%<1%1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

8 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year