Mahaska
- County:
- Washington County
- County Seat:
- No
- Area (mi²):
- 0.223
- State:
- Kansas
Mahaska is a city located in Washington County, Kansas. Mahaska has a 2026 population of 43. Mahaska is currently declining at a rate of -2.27% annually and its population has decreased by -2.27% since the most recent census, which recorded a population of 44 in 2020.
The median household income in Mahaska is $85,500 with a poverty rate of 8.51%. The median age in Mahaska is 53.9 years: 49.8 years for males, and 55.3 years for females. For every 100 females there are 113.6 males.