Perth, Delaware
Unincorporated community
Perth Show map of Delaware Perth Show map of the United States
Coordinates: 39°48′13″N 75°31′26″W / 39.80361°N 75.52389°W / 39.80361; -75.52389
Country	United States
State	Delaware
County	New Castle
Elevation	361 ft (110 m)
Time zone	UTC-5 (Eastern (EST))
• Summer (DST)	UTC-4 (EDT)
Area code	302
GNIS feature ID	215860[1]

Perth is an unincorporated community in New Castle County, Delaware, United States.^[1] Perth is located northwest of Delaware Route 261 between Shipley and Silverside Roads, to the northeast of Wilmington. It is not to be confused with Perth, Western Australia or Perth, Scotland.