
Sullivan township
- County:
- Polk County
- County Seat:
- No
- Area (mi²):
- 35.65
- State:
- Minnesota
Sullivan township is located in Polk County, Minnesota. Sullivan township has a 2025 population of 159. Sullivan township is currently declining at a rate of -1.24% annually and its population has decreased by -3.64% since the most recent census, which recorded a population of 165 in 2020.
The average household income in Sullivan township is $121,560 with a poverty rate of 1.39%. The median age in Sullivan township is 54.8 years: 55.7 years for males, and 54.6 years for females.