Pettit, IndianaPettit is a small unincorporated community in Perry Township, Tippecanoe County, Indiana, located east by northeast of Dayton.The community is part of the Lafayette, Indiana Metropolitan Statistical Area.HistoryA post office was established at Pettit in 1854, and remained in operation until it was discontinued in 1902.GeographyPettit is located in Perry Township at an elevation of 673 feet.