'Black Hawk County' definitions:
Black Hawk -- U.S. County in Iowa
From: Gazetteer 2000
Name :
Black Hawk -- U.S. County in Iowa
Population (2000) :
128012
Housing Units (2000) :
51759
Land area (2000) :
567.114372 sq. miles (1468.819419 sq. km)
Water area (2000) :
4.795964 sq. miles (12.421488 sq. km)
Total area (2000) :
571.910336 sq. miles (1481.240907 sq. km)
Located within :
Iowa (IA), FIPS 19
Location :
42.487586 N, 92.344731 W