'Jackson County, MS' definitions:

Jackson -- U.S. County in Mississippi

From: Gazetteer 2000
Name :
Jackson -- U.S. County in Mississippi
Population (2000) :
131420
Housing Units (2000) :
51678
Land area (2000) :
726.901025 sq. miles (1882.664931 sq. km)
Water area (2000) :
316.399677 sq. miles (819.471367 sq. km)
Total area (2000) :
1043.300702 sq. miles (2702.136298 sq. km)
Located within :
Mississippi (MS), FIPS 28
Location :
30.455709 N, 88.633143 W