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 2026 population of 162. Sullivan township is currently growing at a rate of 0.62% annually but its population has decreased by -0.61% since the most recent census, which recorded a population of 163 in 2020.
The median household income in Sullivan township is $90,625 with a poverty rate of 1.35%. The median age in Sullivan township is 54.4 years: 55.8 years for males, and 54.2 years for females. For every 100 females there are 105.3 males.