Susquehanna Township, Dauphin County, Pennsylvania

Susquehanna Township,
Dauphin County,
Pennsylvania
Location in Dauphin County and state of Pennsylvania.
CountryUnited States
StatePennsylvania
CountyDauphin
Incorporated1815
Government
  TypeBoard of Commissioners
Area
  Total
15.27 sq mi (39.56 km2)
  Land13.34 sq mi (34.55 km2)
  Water1.93 sq mi (5.01 km2)
Population
 (2020)
  Total
26,740
  Estimate 
(2024)
28,214
  Density2,004.2/sq mi (773.84/km2)
Time zoneUTC-5 (Eastern (EST))
  Summer (DST)UTC-4 (EDT)
ZIP codes
17109, 17110
Area code(s)717 and 223
FIPS code42-043-75528
Websitewww.susquehannatwp.com

Susquehanna Township is a township in Dauphin County, Pennsylvania, United States. The population was 26,740 at the time of the 2020 census. This represents a 11.2% increase from the 2010 census count of 24,036. Susquehanna Township has the postal ZIP codes 17109 and 17110, which maintain the Harrisburg place name designation. The township is a suburb of Harrisburg and is connected to Marysville by the Rockville Bridge, the world's longest stone-arch rail bridge at the time of its completion.