Oswego is located in Kendall County, Illinois. Oswego has a 2025 population of 62,128 . Oswego is currently growing at a rate of 2.55% annually and its population has increased by 11.02% since the most recent census, which recorded a population of 55,963 in 2020.
The average household income in Oswego is $131,074 with a poverty rate of 4.37%. The median age in Oswego is 38.2 years: 37.5 years for males, and 38.7 years for females. For every 100 females there are 92.6 males.
Data after 2023 is projected based on recent change
The racial composition of Oswego includes 67.8% White, 9.11% Black or African American, 4.69% other race, 4.51% Asian, and smaller percentages for Native American and multiracial populations.
White (67.8%)
Two or more races (13.26%)
Black or African American (9.11%)
Other race (4.69%)
Asian (4.51%)
Native American (0.63%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 38,585 | 67.8% |
| Two or more races | 7,545 | 13.26% |
| Black or African American | 5,183 | 9.11% |
| Other race | 2,672 | 4.69% |
| Asian | 2,566 | 4.51% |
| Native American | 361 | 0.63% |
Married
Widowed
Divorced
Separated
Never Married
Oswego's average per capita income is $62,041. Household income levels show a median of $113,198. The poverty rate stands at 4.37%.
Name | Median | Mean |
|---|---|---|
| Married Families | $136,834 | - |
| Families | $121,778 | $141,944 |
| Households | $113,198 | $131,074 |
| Non Families | $61,430 | $84,452 |
Average Income
Median Household Income
Poverty Rate