Old Lycoming Township is a township in Lycoming County, Pennsylvania, United States. The population was 4,973 at the 2020 census down from 4,938 in 2010. It is part of the Williamsport Metropolitan Statistical Area. Pay Your Sewer Bill News & Notices Board of Supervisors Meeting 10.08.2024 7pm10/07/2024 Planning Commission Meeting 10.02.2024 7:00 pm10/01/2024 OLAA Special Meeting 09.24.2024 10am09/23/2024 Agenda-Special-Supervisors-Meeting-September-2023-RevisedDownload Agenda-Special-Supervisors-Meeting-September-2023-1Download