Village in Cook County, Illinois · 2.1 sq mi · 5,035 people per sq mi
10,668 people live in Summit. The typical household earns $61,863, and the median resident is 38.1 years old.
2026 projection
From 11,161 in 2020
Poverty rate 11.2%
Men 38.6 · Women 35.3
1880–2026
10,668
2026 projection
4.4% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1880–2026
10,668
2026 projection
4.4% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 10,668 | -85 | 0.79% |
|---|---|---|---|
| 2025 | 10,753 | -25 | 0.23% |
| 2024 | 10,778 | +63 | 0.59% |
| 2023 | 10,715 | -29 | 0.27% |
| 2022 | 10,744 | -164 | 1.50% |
| 2021 | 10,908 | -253 | 2.27% |
| 2020 | 11,161 | -75 | 0.67% |
| 2019 | 11,236 | -48 | 0.43% |
| 2018 | 11,284 | -74 | 0.65% |
| 2017 | 11,358 | -76 | 0.66% |
Showing 10 of 29 years.
The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.
Summit has a population change lower than Cook County, Illinois, and the U.S.
Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.
Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 108 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 9 residents
47% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 47% | 44% | 50% |
| Never married | 40% | 46% | 34% |
| Divorced | 7% | 7% | 8% |
| Widowed | 5% | 2% | 9% |
| Separated | <1% | 1% | <1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources