Village in Cook County, Illinois · 9.1 sq mi · 2,037 people per sq mi
About 19,000 people live in Lemont. The typical household earns $123,370, and the median resident is 43.7 years old.
2026 projection
From 17,803 in 2020
Poverty rate 3.08%
Men 43.1 · Women 44.9
1880–2026
18,614
2026 projection
4.6% 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.
1880–2026
18,614
2026 projection
4.6% 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 | 18,614 | +101 | 0.55% |
|---|---|---|---|
| 2025 | 18,513 | +306 | 1.68% |
| 2024 | 18,207 | +472 | 2.66% |
| 2023 | 17,735 | +57 | 0.32% |
| 2022 | 17,678 | +2 | 0.01% |
| 2021 | 17,676 | -127 | 0.71% |
| 2020 | 17,803 | +524 | 3.03% |
| 2019 | 17,279 | +144 | 0.84% |
| 2018 | 17,135 | +97 | 0.57% |
| 2017 | 17,038 | +87 | 0.51% |
Showing 10 of 29 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 178 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 32 residents
61% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 61% | 65% | 58% |
| Never married | 23% | 23% | 23% |
| Divorced | 8% | 9% | 8% |
| Widowed | 6% | 3% | 10% |
| Separated | 1% | <1% | 2% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau