Osage township is located in Bourbon County, Kansas. Osage township has a 2026 population of 343. Osage township is currently declining at a rate of 0% annually and its population has increased by 0.29% since the most recent census, which recorded a population of 342 in 2020.
The median age in Osage township is 63.5 years: 65.4 years for males, and 63.4 years for females. For every 100 females there are 108.5 males.
Data after 2023 is projected based on recent change
The racial composition of Osage township includes 88.89% White, 11.11% Asian, and smaller percentages for and multiracial populations.
White (88.89%)
Asian (11.11%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 152 | 88.89% |
| Asian | 19 | 11.11% |
Married
Widowed
Divorced
Separated
Never Married