Village in DuPage County, Illinois · 8 sq mi · 1,017 people per sq mi
About 8,100 people live in Oak Brook. The typical household earns $175,870, and the median resident is 55.2 years old.
2026 projection
From 8,072 in 2020
Poverty rate 6.63%
Men 56.8 · Women 53.1
1960–2026
8,109
2026 projection
0.5% since 2020 (increase)
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.
1960–2026
8,109
2026 projection
0.5% since 2020 (increase)
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.
| 2026 | 8,109 | +1 | 0.01% |
|---|---|---|---|
| 2025 | 8,108 | +32 | 0.40% |
| 2024 | 8,076 | +63 | 0.79% |
| 2023 | 8,013 | +45 | 0.56% |
| 2022 | 7,968 | -49 | 0.61% |
| 2021 | 8,017 | -55 | 0.68% |
| 2020 | 8,072 | -7 | 0.09% |
| 2019 | 8,079 | -59 | 0.72% |
| 2018 | 8,138 | -12 | 0.15% |
| 2017 | 8,150 | -7 | 0.09% |
Showing 10 of 22 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 81 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
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 15 residents
59% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 59% | 60% | 58% |
| Never married | 23% | 24% | 22% |
| Divorced | 6% | 6% | 5% |
| Widowed | 11% | 10% | 12% |
| Separated | 1% | 0% | 2% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau