'Marion County, AR' definitions:

Marion -- U.S. County in Arkansas

From: Gazetteer 2000
Name :
Marion -- U.S. County in Arkansas
Population (2000) :
16140
Housing Units (2000) :
8235
Land area (2000) :
597.701667 sq. miles (1548.040144 sq. km)
Water area (2000) :
42.645549 sq. miles (110.451459 sq. km)
Total area (2000) :
640.347216 sq. miles (1658.491603 sq. km)
Located within :
Arkansas (AR), FIPS 05
Location :
36.291289 N, 92.681404 W