McLean County's estimated 2026 population is 173,221 with a growth rate of 0.33% in the past year according to the most recent United States census data. McLean County is the 13th largest county in Illinois. The 2010 population was 169,815 and has seen a growth of 2.01% since that time.
Data after 2023 is projected based on recent change
The racial composition of McLean County includes 79.34% White, 8.44% Black or African American, 4.92% Asian, and smaller percentages for other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (79.34%)
Black or African American (8.44%)
Two or more races (5.62%)
Asian (4.92%)
Other race (1.37%)
Native American (0.29%)
Native Hawaiian or Pacific Islander (0.02%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 135,586 | 79.34% |
| Black or African American | 14,421 | 8.44% |
| Two or more races | 9,604 | 5.62% |
| Asian | 8,402 | 4.92% |
| Other race | 2,336 | 1.37% |
| Native American | 501 | 0.29% |
| Native Hawaiian or Pacific Islander | 32 | 0.02% |
Married
Widowed
Divorced
Separated
Never Married
McLean County's average per capita income is $57,485. Household income levels show a median of $78,329. The poverty rate stands at 13%.
Name | Median | Mean |
|---|---|---|
| Married Families | $126,540 | $154,955 |
| Families | $112,015 | $137,230 |
| Households | $78,329 | $103,921 |
| Non Families | $41,060 | $55,967 |
Average Income
Median Household Income
Poverty Rate