Island Lake village, Illinois
Official LSAD Designation: Island Lake village • Census GEOID: 1737894
• Lake County / McHenry County
Demographics & Population Profile
Population and demographics for Island Lake village.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 8,047 | — | 2025 | Census |
| Median Age | 39.1 yrs | ±2.2 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 2,905 | ±172 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).