Londonderry

Londonderry Township is located in Dauphin County, Pennsylvania, and offers a blend of suburban and rural living. The township is positioned in the southernmost part of the county, with the Susquehanna River forming its western boundary and Conewago Creek defining its southern border. As of 2020, the population was 4,899, and recent estimates suggest a slight increase. The township is known for its parks and above-average public schools, making it an attractive place for families. Historically, Londonderry Township was formed in 1767 after splitting from Derry Township and is named after County Londonderry in Northern Ireland. Agriculture and church life were central to the community's early development. The township is also known for Three Mile Island Nuclear Generating Station, the site of a significant nuclear accident in 1979; the plant was decommissioned in 2019. Today, Londonderry Township offers a mix of residential areas and commercial activities. The township is actively planning for future development, including considerations for AI data centers. With its location, access to outdoor recreation, and ongoing community development, Londonderry Township maintains its distinctive character within Dauphin County.