'Madison County, IA' definitions:
Madison -- U.S. County in Iowa
From: Gazetteer 2000
Name :
Madison -- U.S. County in Iowa
Population (2000) :
14019
Housing Units (2000) :
5661
Land area (2000) :
561.135893 sq. miles (1453.335230 sq. km)
Water area (2000) :
1.160117 sq. miles (3.004689 sq. km)
Total area (2000) :
562.296010 sq. miles (1456.339919 sq. km)
Located within :
Iowa (IA), FIPS 19
Location :
41.336910 N, 94.017570 W