Oswego is a city located in Labette County, Kansas. Oswego has a 2025 population of 1,616 . It is also the county seat of Labette County . Oswego is currently declining at a rate of -0.55% annually and its population has decreased by -2.71% since the most recent census, which recorded a population of 1,661 in 2020.
The average household income in Oswego is $64,968 with a poverty rate of 20.22%. The median age in Oswego is 38.5 years: 38.6 years for males, and 38 years for females. For every 100 females there are 87.5 males.
Data after 2023 is projected based on recent change
The racial composition of Oswego includes 85.54% White, and smaller percentages for Native American, Black or African American, other race and multiracial populations.
White (85.54%)
Two or more races (9.83%)
Native American (2.43%)
Black or African American (2.09%)
Other race (0.11%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,514 | 85.54% |
| Two or more races | 174 | 9.83% |
| Native American | 43 | 2.43% |
| Black or African American | 37 | 2.09% |
| Other race | 2 | 0.11% |
Married
Widowed
Divorced
Separated
Never Married
Oswego's average per capita income is $36,895. Household income levels show a median of $51,701. The poverty rate stands at 20.22%.
Name | Median | Mean |
|---|---|---|
| Married Families | $90,357 | - |
| Families | $61,058 | $71,139 |
| Households | $51,701 | $64,968 |
| Non Families | $26,800 | $45,238 |
Average Income
Median Household Income
Poverty Rate