You have conflated the name Paupack. There are two different entities of two different types named Paupack: Paupack Township is a municipality in Wayne County, Pennsylvania. It is served by Hawley post office (18428) and Lakeville post office (18438). Paupack post office (18451) is in Pike County, and is part of Palmyra Township, Pike County, Pennsylvania (there is a Palmyra Township, Wayne County as well).
This error on your part results in frequent confusion. It is one of the reasons that locals frequently disparage your website.