
Middlefield township
- County:
- Buchanan County
- County Seat:
- No
- Area (mi²):
- 34.983
- State:
- Iowa
Middlefield township is located in Buchanan County, Iowa. Middlefield township has a 2025 population of 254. Middlefield 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 Middlefield township is $115,391 with a poverty rate of 0%. The median age in Middlefield township is 43.4 years: 38.3 years for males, and 43.8 years for females.