New Boston is an unincorporated community in Huron Charter Township, Wayne County, in the U.S. state of Michigan.Huron Township includes three separate communities: the largest community is New Boston; south of New Boston, Willow and Waltz are smaller, newer communities being developed with new subdivisions. The Huron River runs just south of downtown New Boston. Huron Township is just south of Romulus, Michigan, and is just west of Flat Rock, Michigan.