'Polk County, NE' definitions:

Polk -- U.S. County in Nebraska

From: Gazetteer 2000
Name :
Polk -- U.S. County in Nebraska
Population (2000) :
5639
Housing Units (2000) :
2717
Land area (2000) :
438.835817 sq. miles (1136.579500 sq. km)
Water area (2000) :
1.879881 sq. miles (4.868868 sq. km)
Total area (2000) :
440.715698 sq. miles (1141.448368 sq. km)
Located within :
Nebraska (NE), FIPS 31
Location :
41.184518 N, 97.588967 W