Mahaska is a city located in Washington County, Kansas. Mahaska has a 2025 population of 44 . Mahaska is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 44 in 2020.
The median age in Mahaska is 55.3 years: 52.7 years for males, and 55.9 years for females. For every 100 females there are 122.2 males.
Data after 2023 is projected based on recent change
The racial composition of Mahaska includes 92.5% White, and smaller percentages for and multiracial populations.
White (92.5%)
Two or more races (7.5%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 37 | 92.5% |
| Two or more races | 3 | 7.5% |
Married
Widowed
Divorced
Separated
Never Married