'Dauphin County, PA' definitions:

Dauphin -- U.S. County in Pennsylvania

From: Gazetteer 2000
Name :
Dauphin -- U.S. County in Pennsylvania
Population (2000) :
251798
Housing Units (2000) :
111133
Land area (2000) :
525.289370 sq. miles (1360.493165 sq. km)
Water area (2000) :
32.243331 sq. miles (83.509841 sq. km)
Total area (2000) :
557.532701 sq. miles (1444.003006 sq. km)
Located within :
Pennsylvania (PA), FIPS 42
Location :
40.324487 N, 76.804656 W