Lake County's estimated 2026 population is 727,398 with a growth rate of 0.61% in the past year according to the most recent United States census data. Lake County is the 3rd largest county in Illinois. The 2010 population was 704,179 and has seen a growth of 3.3% since that time.
Data after 2023 is projected based on recent change
The racial composition of Lake County includes 64.02% White, 8.46% Asian, 8.34% other race, 6.64% Black or African American, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (64.02%)
Two or more races (11.61%)
Asian (8.46%)
Other race (8.34%)
Black or African American (6.64%)
Native American (0.89%)
Native Hawaiian or Pacific Islander (0.05%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 455,739 | 64.02% |
| Two or more races | 82,625 | 11.61% |
| Asian | 60,193 | 8.46% |
| Other race | 59,380 | 8.34% |
| Black or African American | 47,294 | 6.64% |
| Native American | 6,319 | 0.89% |
| Native Hawaiian or Pacific Islander | 335 | 0.05% |
Married
Widowed
Divorced
Separated
Never Married
Lake County's average per capita income is $61,564. Household income levels show a median of $108,917. The poverty rate stands at 8.07%.
Name | Median | Mean |
|---|---|---|
| Married Families | $153,247 | $201,471 |
| Families | $132,828 | $178,491 |
| Households | $108,917 | $152,447 |
| Non Families | $56,234 | $80,705 |
Average Income
Median Household Income
Poverty Rate
