Willow Valley township
- County:
- St. Louis County
- County Seat:
- No
- Area (mi²):
- 35.079
- State:
- Minnesota
Willow Valley township is located in St. Louis County, Minnesota. Willow Valley township has a 2026 population of 110. Willow Valley township is currently declining at a rate of -0.9% annually and its population has decreased by -0.9% since the most recent census, which recorded a population of 111 in 2020.
The median household income in Willow Valley township is $57,500 with a poverty rate of 21.69%. The median age in Willow Valley township is 60.9 years: 60.3 years for males, and 62.5 years for females. For every 100 females there are 118.4 males.