According to the United States Census Bureau, the township has a total area of, of which, of it is land and of it is water.
Demographics
As of the census of 2000, there were 2,209 people, 843 households, and 655 families living in the township. The population density was 73.2 people per square mile. There were 897 housing units at an average density of 29.7/sq mi. The racial makeup of the township was 98.87% White, 0.23% African American, 0.14% Asian, 0.05% Pacific Islander, 0.32% from other races, and 0.41% from two or more races. Hispanic or Latino of any race were 0.50% of the population. There were 843 households, out of which 35.0% had children under the age of 18 living with them, 65.6% were married couples living together, 7.1% had a female householder with no husband present, and 22.3% were non-families. 17.8% of all households were made up of individuals, and 5.2% had someone living alone who was 65 years of age or older. The average household size was 2.62 and the average family size was 2.94. In the township the population was spread out, with 24.7% under the age of 18, 7.4% from 18 to 24, 31.0% from 25 to 44, 27.7% from 45 to 64, and 9.2% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 99.9 males. For every 100 females age 18 and over, there were 102.9 males. The median income for a household in the township was $43,900, and the median income for a family was $49,393. Males had a median income of $33,750 versus $26,581 for females. The per capita income for the township was $19,057. About 3.8% of families and 6.1% of the population were below the poverty line, including 7.9% of those under age 18 and 6.5% of those age 65 or over.
Education
Residents of Centre Township may attend the local, public schools operated by West Perry School District which provides full day kindergarten through 12th grade. In 2016, the District's enrollment declined to 2,482 students. In 2016, West Perry School District ranked 331st out of 493 public school districts for academic achievement of its pupils, by the Pittsburgh Business Times. The 2016 graduation rate was just 86%. High School students and adults can attend the publicly funded Cumberland Perry Area Vocational Technical School which is located in Mechanicsburg, Pennsylvania. CPAVTA provides students training in the: construction and mechanical trades, culinary arts, health aids, computer technical careers and other fields. Students may also attend Capital Area Online Learning Association online education programs. The service is operated by the Capital Area Intermediate Unit 15. Centre Township residents may also apply to attend any of the Commonwealth's 13 public cyber charter schools at no additional cost to the parents. The resident’s public school district is required to pay the charter school and cyber charter school tuition for residents who attend these public schools. By Commonwealth law, if the District provides transportation for its own students, then the District must provide transportation to any school that lies within 10 miles of its borders. Residents may also seek admission for their school aged child to any other public school district. When accepted for admission, the student's parents are responsible for paying an annual tuition fee set by the Pennsylvania Department of Education. In 2015, the tuition fees for West Perry School District were: Elementary School - $7,145.66, High School - $9,606.12. Capital Area Intermediate Unit #15 provides a wide variety of services to children living in its region which includes Centre Township. Early screening, special education services, speech and hearing therapy and many other services like driver education are available. Services for children during the preschool years are provided without cost to their families when the child is determined to meet eligibility requirements. ;Libraries Community members have access to the Community Library of West Perry County in Blain; the Bloomfield Public Library which is located in New Bloomfield and to the statewide PA Power Library which is an online library funded with tax dollars through the state's annual education budget. School aged residents may also attend the Capital Area School for the Arts which is an arts charter school located in Harrisburg, Pennsylvania. Armstrong Valley Christian School is one of several private schools that are also available to the Township's residents. ;Community college Centre Township residents have access to Harrisburg Area Community College. People residing in the community fund HACC through an annual payment made by West Perry School District. Twenty two local public school districts are required to contribute annually to HACC, regardless of whether any residents are attending the college. Full-time students from these districts, who attend HACC, pay $1,674 for 12 credit hours.
