Osage is located in Labette County, Kansas. Osage has a 2025 population of 968 . Osage is currently declining at a rate of -0.62% annually and its population has decreased by -2.42% since the most recent census, which recorded a population of 992 in 2020.
The average household income in Osage is $83,927 with a poverty rate of 4.09%. The median age in Osage is 29.1 years: 19.2 years for males, and 29.9 years for females. For every 100 females there are 120.0 males.
Data after 2023 is projected based on recent change
The racial composition of Osage includes 92.4% White, and smaller percentages for Black or African American and multiracial populations.
White (92.4%)
Two or more races (5.56%)
Black or African American (2.04%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,130 | 92.4% |
| Two or more races | 68 | 5.56% |
| Black or African American | 25 | 2.04% |
Married
Widowed
Divorced
Separated
Never Married
Osage's average per capita income is $45,625. Household income levels show a median of $78,646. The poverty rate stands at 4.09%.
Name | Median | Mean |
|---|---|---|
| Married Families | $90,542 | - |
| Families | $81,875 | $87,229 |
| Households | $78,646 | $83,927 |
| Non Families | $34,569 | $37,646 |
Average Income
Median Household Income
Poverty Rate