'Polk, IA' definitions:
Polk -- U.S. County in Iowa
From: Gazetteer 2000
Name :
Polk -- U.S. County in Iowa
Population (2000) :
374601
Housing Units (2000) :
156447
Land area (2000) :
569.346478 sq. miles (1474.600546 sq. km)
Water area (2000) :
22.553827 sq. miles (58.414140 sq. km)
Total area (2000) :
591.900305 sq. miles (1533.014686 sq. km)
Located within :
Iowa (IA), FIPS 19
Location :
41.627938 N, 93.630942 W