'Mississippi County, AR' definitions:

Mississippi -- U.S. County in Arkansas

From: Gazetteer 2000
Name :
Mississippi -- U.S. County in Arkansas
Population (2000) :
51979
Housing Units (2000) :
22310
Land area (2000) :
898.248594 sq. miles (2326.453080 sq. km)
Water area (2000) :
21.480804 sq. miles (55.635025 sq. km)
Total area (2000) :
919.729398 sq. miles (2382.088105 sq. km)
Located within :
Arkansas (AR), FIPS 05
Location :
35.806751 N, 90.030415 W