Henry -- U.S. County in Alabama Population (2000): 16310 Housing Units (2000): 8037 Land area (2000): 561.796182 sq. miles (1455.045371 sq. km) Water area (2000): 6.530333 sq. miles (16.913484 sq. km) Total area (2000): 568.326515 sq. miles (1471.958855 sq. km) Located within: Alabama (AL), FIPS 01 Location: 31.493511 N, 85.253760 W Headwords: Henry Henry, AL Henry County Henry County, AL