The creek is impounded in the township to form Lake Arthur, surrounded by Moraine State Park.

The township surrounds the borough of Portersville but is a separate entity.

The unincorporated community of Lake Arthur Estates, a census-designated place, is in the northwestern part of the township.

[3] As of the 2000 census,[5] there were 2,267 people, 901 households, and 658 families residing in the township.

22.9% of all households were made up of individuals, and 8.8% had someone living alone who was 65 years of age or older.