'Twin Falls County, ID' definitions:

Twin Falls -- U.S. County in Idaho

From: Gazetteer 2000
Name :
Twin Falls -- U.S. County in Idaho
Population (2000) :
64284
Housing Units (2000) :
25595
Land area (2000) :
1925.025658 sq. miles (4985.793354 sq. km)
Water area (2000) :
3.443082 sq. miles (8.917541 sq. km)
Total area (2000) :
1928.468740 sq. miles (4994.710895 sq. km)
Located within :
Idaho (ID), FIPS 16
Location :
42.489080 N, 114.611547 W