| Name | Lake County |
| State | Illinois |
| FIPS Code | 17097 |
| County Seat | Waukegan |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 701,282 |
| Population Growth Rate(2000-2022) | 1.55% |
| Majority Ethnicity | White 80.69% |
| Public School Majority Ethnicity | White 44% |
| Partisan Voting Index | Democratic:+12 |
| Unemployment Rate (December 2024) | 4.5% |
| Area Code(s) | 224 / 847 / 815 / 779 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 80.69% |
| African American | 8.14% |
| Hispanic | 0.87% |
| Asian | 10.17% |
| Native American | 0.06% |
| Hawaiin/Pacific Islander | 0.06% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 44.4% |
| African American | 6.91% |
| Hispanic | 33.69% |
| Asian | 10.29% |
| Native American | 0.38% |
| Hawaiin/Pacific Islander | 0.12% |