[2] The Runk Bridge and Lewis Smalley Homestead are listed on the National Register of Historic Places.

[3] The Shirley Township Municipal Building is located on Croghan Pike between Allenport and Shirleysburg.

As of the census[5] of 2000, there were 2,526 people, 988 households, and 728 families residing in the township.

There were 988 households, out of which 30.6% had children under the age of 18 living with them, 60.4% were married couples living together, 8.0% had a female householder with no husband present, and 26.3% were non-families.

22.7% of all households were made up of individuals, and 10.3% had someone living alone who was 65 years of age or older.