Montgomery -- U.S. County in Arkansas Population (2000): 9245 Housing Units (2000): 5048 Land area (2000): 780.927003 sq. miles (2022.591566 sq. km) Water area (2000): 19.359009 sq. miles (50.139601 sq. km) Total area (2000): 800.286012 sq. miles (2072.731167 sq. km) Located within: Arkansas (AR), FIPS 05 Location: 34.559133 N, 93.643872 W Headwords: Montgomery Montgomery, AR Montgomery County Montgomery County, AR