Lake County's estimated 2026 population is 507,683 with a growth rate of 0.47% in the past year according to the most recent United States census data. Lake County is the 2nd largest county in Indiana. The 2010 population was 495,972 and has seen a growth of 2.36% since that time.
Data after 2023 is projected based on recent change
The racial composition of Lake County includes 57.23% White, 23.19% Black or African American, 8.06% other race, and smaller percentages for Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (57.23%)
Black or African American (23.19%)
Two or more races (9.55%)
Other race (8.06%)
Asian (1.56%)
Native American (0.38%)
Native Hawaiian or Pacific Islander (0.03%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 285,553 | 57.23% |
| Black or African American | 115,720 | 23.19% |
| Two or more races | 47,652 | 9.55% |
| Other race | 40,206 | 8.06% |
| Asian | 7,775 | 1.56% |
| Native American | 1,918 | 0.38% |
| Native Hawaiian or Pacific Islander | 166 | 0.03% |
Married
Widowed
Divorced
Separated
Never Married
Lake County's average per capita income is $48,057. Household income levels show a median of $68,985. The poverty rate stands at 14.61%.
Name | Median | Mean |
|---|---|---|
| Married Families | $108,768 | $128,190 |
| Families | $85,329 | $106,158 |
| Households | $68,985 | $90,364 |
| Non Families | $41,010 | $56,169 |
Average Income
Median Household Income
Poverty Rate