Londonderry Township, Dauphin County, Pennsylvania
Londonderry Township, Dauphin County, Pennsylvania | |
|---|---|
Location in Dauphin County and state of Pennsylvania. | |
| Country | United States |
| State | Pennsylvania |
| County | Dauphin |
| Incorporated | 1768 |
| Area | |
• Total | 26.93 sq mi (69.74 km2) |
| • Land | 22.75 sq mi (58.93 km2) |
| • Water | 4.17 sq mi (10.80 km2) |
| Population (2020) | |
• Total | 4,899 |
• Estimate (2023) | 4,884 |
| • Density | 228.57/sq mi (88.25/km2) |
| Time zone | UTC-5 (Eastern (EST)) |
| • Summer (DST) | UTC-4 (EDT) |
| Area code | 717 |
| FIPS code | 42-043-44464 |
| Website | londonderrypa |
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Londonderry Township is a township in Dauphin County, Pennsylvania, United States. The population was 4,899 at the 2020 census.
The township includes the Three Mile Island Nuclear Generating Station, the location of the largest accident in the history of the American nuclear power generating industry, which took place in 1979. The nuclear power plant closed in 2019.