Boardman, WisconsinBoardman is an unincorporated community in St. Croix [County, Wisconsin], United States, located just southwest of New Richmond on County Road A, in the town of Richmond.HistoryBoardman was named in 1853 for C. A. Boardman, an early settler. A post office called Boardman was established in 1862, and remained in operation until it was discontinued in 1954.