Willow River is a city located in Pine County Minnesota. With a 2020 population of 404, it is the 538th largest city in Minnesota and the 14236th largest city in the United States . Willow River is currently growing at a rate of 0.50% annually but its population has decreased by -2.65% since the most recent census, which recorded a population of 415 in 2010. Willow River reached it's highest population of 414 in 2010. Spanning over 2 miles, Willow River has a population density of 236 people per square mile.
The average household income in Willow River is $52,245 with a poverty rate of 13.57%. The median rental costs in recent years comes to $740 per month, and the median house value is $123,500. The median age in Willow River is 38.9 years, 38 years for males, and 39.1 years for females.