South Annville Township, Pennsylvania

It is part of the Lebanon, Pennsylvania Metropolitan Statistical Area.

[4] According to the U.S. Census Bureau, the township has a total area of 19.6 square miles (50.9 km2), all land.

Annville-Cleona High School is in the northern part of the township.

There were 1,129 housing units at an average density of 57.5 per square mile (22.2/km2).

19.4% of all households were made up of individuals, and 8.3% had someone living alone who was 65 years of age or older.