
Plank township
- County:
- Keokuk County
- County Seat:
- No
- Area (mi²):
- 57.154
- State:
- Iowa
Plank township is located in Keokuk County, Iowa. Plank township has a 2025 population of 507. Plank township 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 0 in 2020.
The average household income in Plank township is $119,126 with a poverty rate of 0%. The median age in Plank township is 41 years: 42.2 years for males, and 40.7 years for females.