
West Branch township
- County:
- Marion County
- County Seat:
- No
- Area (mi²):
- 35.504
- State:
- Kansas
West Branch township is located in Marion County, Kansas. West Branch township has a 2025 population of 990. West Branch township is currently declining at a rate of -1% annually and its population has decreased by -2.46% since the most recent census, which recorded a population of 1,015 in 2020.
The average household income in West Branch township is $114,356 with a poverty rate of 7.03%. The median age in West Branch township is 45 years: 45 years for males, and 44.8 years for females.