The division line of both new county and of Palmyra Township was the Wallenpaupack River.

The Promised Land State Park-Whittaker Lodge District, and Promised Land State Park-Bear Wallow Cabins are listed on the National Register of Historic Places.

As of the census[4] of 2010, there were 3,312 people, 1,455 households, and 1,008 families residing in the township.

There were 4,088 housing units at an average density of 119.9 per square mile (46.3/km2).

26% of all households were made up of individuals, and 10.7% had someone living alone who was 65 years of age or older.