Annville Township, Lebanon County, Pennsylvania  Annville Township is a township and census-designated place in Lebanon County, Pennsylvania, United States. The population was 4,767 at the 2010 census. Annville Township was divided into North Annville Township and South Annville Township in 1845. In 1912, the new Annville Township was formed between the two to encompass the town of Annville. Annville Township is located at (40.330162, -76.512533). According to the United States Census Bureau, the township has a total area of , of which, of it is land and 0.63% is water. Annville has a humid continental climate and is classified "Dfa" on Köppen climate classification. Annville gets warm to hot summers and cold winters. Winters bring 40" of snow annually. The township is bordered to the north and west by North Annville Township (3.2 mi), to the south and west by South Annville Township (3 mi), and to the east by Cleona (0.47 mi) and North Cornwall Township (0.25 mi). As of the census of 2000, there were 4,518 people, 1,452 households, and 917 families residing in the township. The population density was 2,864.6 people per square mile (1,104.1/km²). There were 1,556 housing units at an average density of 986.6/sq mi (380.2/km²). The racial makeup of the township was 95.40% White, 1.08% African American, 0.02% Native American, 1.24% Asian, 0.11% Pacific Islander, 0.97% from other races, and 1.17% from two or more races. Hispanic or Latino of any race were 1.79% of the population. There were 1,452 households, out of which 27.8% had children under the age of 18 living with them, 51.0% were married couples living together, 8.3% had a female householder with no husband present, and 36.8% were non-families. 29.1% of all households were made up of individuals, and 11.8% had someone living alone who was 65 years of age or older. The average household size was 2.35 and the average family size was 2.87. In the township the population was spread out, with 16.3% under the age of 18, 31.2% from 18 to 24, 23.1% from 25 to 44, 15.9% from 45 to 64, and 13.5% who were 65 years of age or older.