Maplewood Township, organized July 26, 1880, was then called St. Agnes, but was renamed May 2, 1882. The sugar maple is a common or abundant tree throughout nearly all of the forested region of the state.
Source: The Book “Minnesota Geographic Names: Their Origin and Historic Significance” Volume 17 – 1920 By Warren Upham”
A large portion of this township is occupied by Maplewood State Park.