Salem is a second-class township in Wayne County, Pennsylvania, United States.

The township's population was 4,271 at the time of the 2010 United States Census.

As of the census of 2010, there were 4,271 people, 1,770 households, and 1,238 families residing in the township.

There were 3,019 housing units at an average density of 98.7 per square mile (38.1/km2).

25% of all households were made up of individuals, and 9.8% had someone living alone who was 65 years of age or older.