Plainfield Map
Plainfield is a census-designated place (CDP) in Cumberland County, Pennsylvania, United States. The population was 376 at the 2000 census. It is part of the Harrisburg–Carlisle Metropolitan Statistical Area.
Plainfield is located at 40°12?7?N 77°17?12?W / 40.20194°N 77.28667°W / 40.20194; -77.28667 (40.202023, -77.286621).
According to the United States Census Bureau, the CDP has a total area of 0.6 square miles (1.6 km²), all of it land.
Nearby cities include New Kingstown, Gardners, Dillsburg, Mechanicsburg, Newburg.