Village in Lake County, Illinois · 5.6 sq mi · 3,326 people per sq mi
About 18,000 people live in Round Lake. The typical household earns $111,977, and the median resident is 36.1 years old.
2026 projection
From 18,689 in 2020
Poverty rate 8.96%
Men 35.3 · Women 37.1
1910–2026
18,491
2026 projection
1.1% since 2020 (decrease)
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.
1910–2026
18,491
2026 projection
1.1% since 2020 (decrease)
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 | 18,491 | -35 | 0.19% |
|---|---|---|---|
| 2025 | 18,526 | -24 | 0.13% |
| 2024 | 18,550 | +20 | 0.11% |
| 2023 | 18,530 | -18 | 0.10% |
| 2022 | 18,548 | -83 | 0.45% |
| 2021 | 18,631 | -58 | 0.31% |
| 2020 | 18,689 | +586 | 3.24% |
| 2019 | 18,103 | -126 | 0.69% |
| 2018 | 18,229 | -166 | 0.90% |
| 2017 | 18,395 | -96 | 0.52% |
Showing 10 of 27 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 186 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 11 residents
54% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 54% | 59% | 50% |
| Never married | 30% | 30% | 30% |
| Divorced | 12% | 7% | 16% |
| Widowed | 3% | 2% | 3% |
| Separated | 1% | 1% | <1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau