Castle township
- County:
- McPherson County
- County Seat:
- No
- Area (mi²):
- 36.078
- State:
- Kansas
Castle township is located in McPherson County, Kansas. Castle township has a 2026 population of 166. Castle township is currently growing at a rate of 0.61% annually and its population has increased by 2.47% since the most recent census, which recorded a population of 162 in 2020.
The median household income in Castle township is $50,000 with a poverty rate of 6.77%. The median age in Castle township is 49.1 years: 46.6 years for males, and 58.1 years for females. For every 100 females there are 115.7 males.