Kendall County's 2026 population is estimated at 149,055, reflecting a 2.01% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Kendall County is the 14th largest county in Illinois. The 2010 population was 115,369 and has grown 29.2% since 2010.
Data after 2023 is projected based on recent change
Overall: 36.3 years
Female: 37.2 years
Male: 35.5 years
There are 100,437 adults, (15,466 of whom are seniors) in Kendall County.
Female: 68,850 (50%)
Male: 68,825 (50%)
The racial composition of Kendall County includes 65.27% White, 7.68% Black or African American, 5.03% other race, 3.63% Asian, and smaller percentages for Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 89,865 | 65.27% |
| Two or more races | 24,391 | 17.72% |
| Black or African American | 10,573 | 7.68% |
| Other race | 6,920 | 5.03% |
| Asian | 4,997 | 3.63% |
| Native American | 929 | 0.67% |
Kendall County 's average per capita income is $62,284. Household income levels show a median of $111,601. The poverty rate stands at 5.42%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $135,889 | $154,982 |
| Families | $121,304 | $139,006 |
| Households | $111,601 | $129,379 |
| Non Families | $66,895 | $85,782 |
Average Income
Median Household Income
Poverty Rate
