'Lyon County, IA' definitions:
Lyon -- U.S. County in Iowa
From: Gazetteer 2000
Name :
Lyon -- U.S. County in Iowa
Population (2000) :
11763
Housing Units (2000) :
4758
Land area (2000) :
587.500858 sq. miles (1521.620172 sq. km)
Water area (2000) :
0.134081 sq. miles (0.347269 sq. km)
Total area (2000) :
587.634939 sq. miles (1521.967441 sq. km)
Located within :
Iowa (IA), FIPS 19
Location :
43.387622 N, 96.205202 W