The township is part of the Back Mountain (a 118 square mile region in northern Luzerne County).

The campus of Penn State Wilkes-Barre is located at the Hayfield Farms on Old Route 115 in Lehman Township.

[2] On March 28, 1780, John Rogers and Asa Upson were producing sugar a short distance above the mouth of Hunlock Creek, when they were suddenly surrounded and captured by Native Americans.

[3] The following day, the Native Americans advanced on the Village of Orange, where they captured Moses Van Campen, his father, and Peter Pence.

[3] Nehemiah Ide and Jeremiah Brown are believed to be the first white settlers in modern-day Lehman Township; they moved to the region in 1801.

20.3% of all households were made up of individuals, and 9.2% had someone living alone who was 65 years of age or older.

The census of 2000 also reported that residents of Lehman, Pennsylvania had the longest commute in the country of communities with at least 1,000 workers.