'Berks County, PA' definitions:

Berks -- U.S. County in Pennsylvania

From: Gazetteer 2000
Name :
Berks -- U.S. County in Pennsylvania
Population (2000) :
373638
Housing Units (2000) :
150222
Land area (2000) :
858.880162 sq. miles (2224.489314 sq. km)
Water area (2000) :
6.785891 sq. miles (17.575375 sq. km)
Total area (2000) :
865.666053 sq. miles (2242.064689 sq. km)
Located within :
Pennsylvania (PA), FIPS 42
Location :
40.377743 N, 75.914242 W