McLean County's estimated 2026 population is 171,326 with a growth rate of -0.05% 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 0.89% since that time.
Data after 2023 is projected based on recent change
Overall: 34.3 years
Female: 34.8 years
Male: 33.7 years
There are 135,165 adults, (25,004 of whom are seniors) in McLean County.
Female: 87,701 (51.1%)
Male: 83,855 (48.9%)
The racial composition of McLean County includes 77.98% White, 8.53% Black or African American, 5.25% Asian, and smaller percentages for other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 133,787 | 77.98% |
| Black or African American | 14,627 | 8.53% |
| Two or more races | 9,907 | 5.77% |
| Asian | 9,007 | 5.25% |
| Other race | 3,616 | 2.11% |
| Native American | 541 | 0.32% |
| Native Hawaiian or Pacific Islander | 71 | 0.04% |
McLean County's average per capita income is $59,024. Household income levels show a median of $79,905. The poverty rate stands at 12.91%.
Name | Median | Mean |
|---|---|---|
| Married Families | $130,860 | $158,012 |
| Families | $112,292 | $138,877 |
| Households | $79,905 | $105,003 |
| Non Families | $42,308 | $57,936 |
Average Income
Median Household Income
Poverty Rate