Lake County's estimated 2026 population is 506,727 with a growth rate of 0.42% 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 2.17% since that time.
Data after 2023 is projected based on recent change
Overall: 39.7 years
Female: 40.9 years
Male: 38.4 years
There are 384,539 adults, (89,442 of whom are seniors) in Lake County.
Female: 256,872 (51.3%)
Male: 243,507 (48.7%)
The racial composition of Lake County includes 54.85% White, 23.07% Black or African American, 7.97% other race, and smaller percentages for Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 274,459 | 54.85% |
| Black or African American | 115,462 | 23.07% |
| Two or more races | 59,863 | 11.96% |
| Other race | 39,870 | 7.97% |
| Asian | 8,064 | 1.61% |
| Native American | 2,582 | 0.52% |
| Native Hawaiian or Pacific Islander | 79 | 0.02% |
Lake County's average per capita income is $50,262. Household income levels show a median of $71,493. The poverty rate stands at 14.29%.
Name | Median | Mean |
|---|---|---|
| Married Families | $111,770 | $132,241 |
| Families | $88,760 | $109,926 |
| Households | $71,493 | $93,636 |
| Non Families | $41,898 | $58,024 |
Average Income
Median Household Income
Poverty Rate