'Grundy County, IA' definitions:

Grundy -- U.S. County in Iowa

From: Gazetteer 2000
Name :
Grundy -- U.S. County in Iowa
Population (2000) :
12369
Housing Units (2000) :
5304
Land area (2000) :
502.513680 sq. miles (1301.504402 sq. km)
Water area (2000) :
0.032379 sq. miles (0.083861 sq. km)
Total area (2000) :
502.546059 sq. miles (1301.588263 sq. km)
Located within :
Iowa (IA), FIPS 19
Location :
42.383941 N, 92.785161 W