Herkimer township
- County:
- Marshall County
- County Seat:
- No
- Area (mi²):
- 35.588
- State:
- Kansas
Herkimer township is located in Marshall County, Kansas. Herkimer township has a 2026 population of 217. Herkimer township is currently declining at a rate of 0% annually and its population has decreased by -1.81% since the most recent census, which recorded a population of 221 in 2020.
The median household income in Herkimer township is $91,250 with a poverty rate of 0%. The median age in Herkimer township is 50.8 years: 35.7 years for males, and 54.6 years for females. For every 100 females there are 156.3 males.