South Williamsport is located in northeast Lycoming County and lies on the south side of the Susquehanna River from the city of Williamsport. At quite an early period, a village grew, which was named Rocktown. Before the completion of the canal, the descending trade on the river had become very heavy requiring accommodations for rest and refreshment. At the mouth of Hagerman’s Run was a favorite place to “tie up”, so Michael McDonough established a tavern for convenience of the public. The first real movement towards a town at this point was when Jacob Weise bought a tract of forty acres and laid it out in town lots. He also established a brick yard near McDonough’s tavern and thus promoted trade in his settlement. Bootstown grew up around the furniture factory of George Luppert, and the sawmills of Green, Sands and Company, and the planning mill of Valentine Luppert. These two settlements – Rocktown and Bootstown are now included in the Borough of South Williamsport.

The Borough was incorporated in November of 1886. The government consists of a Mayor and a 9-member borough council with three members from each ward. The first ward extends from the border of Armstrong Township on the east to the east side of Market St., the second ward begins at the western line of Market St. to the east line of Clinton St. and the third ward extends from the west line of Clinton St. to the Duboistown Borough line.

The South Williamsport Borough is located in the 83rd State Representative District, the 23rd State Senatorial District and the 5th U.S. Congressional District. South Williamsport is a residential community with small businesses. Population is 6,412 as calculated by the 2000 census. The Borough is approximately 1.9 square miles in size with approximately 23 miles of roads.

South Williamsport is known internationally as the Home of Little League Baseball and games take place at the end of August each year. At that time traffic more than triples through the area. The South Williamsport Mummers’ Parade is also a well-known event with a history of more than 50 years, taking place in October of each year and attracting participants and viewers from across the county. A Christmas tree ceremony is held in front of the Borough Building on W. Southern Ave. each year in December featuring local musical entertainment and the arrival of Santa Claus by fire truck for the children. The spirit of the South Williamsport residents is evident in the support of borough activities and in their commitment to maintaining and keeping their homes in good condition.