'Blair County, PA' definitions:
Blair -- U.S. County in Pennsylvania
From: Gazetteer 2000
Name :
Blair -- U.S. County in Pennsylvania
Population (2000) :
129144
Housing Units (2000) :
55061
Land area (2000) :
525.802310 sq. miles (1361.821674 sq. km)
Water area (2000) :
1.311417 sq. miles (3.396553 sq. km)
Total area (2000) :
527.113727 sq. miles (1365.218227 sq. km)
Located within :
Pennsylvania (PA), FIPS 42
Location :
40.479391 N, 78.383313 W