Oswego is a village located in Kendall County, Illinois. Oswego has a 2025 population of 39,786 . Oswego is currently growing at a rate of 2.6% annually and its population has increased by 14.51% since the most recent census, which recorded a population of 34,744 in 2020.
The average household income in Oswego is $134,326 with a poverty rate of 2.26%. The median age in Oswego is 39.7 years: 38.2 years for males, and 40.2 years for females. For every 100 females there are 93.8 males.
Data after 2023 is projected based on recent change
The racial composition of Oswego includes 68.75% White, 12.01% Black or African American, 4.55% Asian, and smaller percentages for other race, Native American and multiracial populations.
White (68.75%)
Two or more races (12.09%)
Black or African American (12.01%)
Asian (4.55%)
Other race (2.21%)
Native American (0.38%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 24,380 | 68.75% |
| Two or more races | 4,288 | 12.09% |
| Black or African American | 4,260 | 12.01% |
| Asian | 1,614 | 4.55% |
| Other race | 785 | 2.21% |
| Native American | 136 | 0.38% |
Married
Widowed
Divorced
Separated
Never Married
Oswego's average per capita income is $68,753. Household income levels show a median of $119,881. The poverty rate stands at 2.26%.
Name | Median | Mean |
|---|---|---|
| Married Families | $148,420 | - |
| Families | $127,077 | $144,183 |
| Households | $119,881 | $134,326 |
| Non Families | $59,009 | $86,459 |
Average Income
Median Household Income
Poverty Rate