'Union County, AR' definitions:
Union -- U.S. County in Arkansas
From: Gazetteer 2000
Name :
Union -- U.S. County in Arkansas
Population (2000) :
45629
Housing Units (2000) :
20676
Land area (2000) :
1038.902505 sq. miles (2690.745020 sq. km)
Water area (2000) :
16.367899 sq. miles (42.392663 sq. km)
Total area (2000) :
1055.270404 sq. miles (2733.137683 sq. km)
Located within :
Arkansas (AR), FIPS 05
Location :
33.207179 N, 92.612793 W