Willow River Elementary School is the school in the Hudson School District closest to Hudson's historic downtown district. The school takes up an entire city block, with Fourth Street to the west, Fifth Street to the east, St. Croix Street to the north and Oak Street to the south. Willow River Elementary is across the street from St. Patrick's School and just a block from Trinity Academy. Be careful driving in this area during school hours. There are a lot of children walking to and from school.