'Union County, TN' definitions:
Union -- U.S. County in Tennessee
From: Gazetteer 2000
Name :
Union -- U.S. County in Tennessee
Population (2000) :
17808
Housing Units (2000) :
7916
Land area (2000) :
223.563421 sq. miles (579.026577 sq. km)
Water area (2000) :
23.566680 sq. miles (61.037419 sq. km)
Total area (2000) :
247.130101 sq. miles (640.063996 sq. km)
Located within :
Tennessee (TN), FIPS 47
Location :
36.265117 N, 83.814380 W