'Hamilton County, IA' definitions:

Hamilton -- U.S. County in Iowa

From: Gazetteer 2000
Name :
Hamilton -- U.S. County in Iowa
Population (2000) :
16438
Housing Units (2000) :
7082
Land area (2000) :
576.679985 sq. miles (1493.594242 sq. km)
Water area (2000) :
0.764511 sq. miles (1.980074 sq. km)
Total area (2000) :
577.444496 sq. miles (1495.574316 sq. km)
Located within :
Iowa (IA), FIPS 19
Location :
42.393883 N, 93.722419 W