Bannock -- U.S. County in Idaho Population (2000): 75565 Housing Units (2000): 29102 Land area (2000): 1113.298450 sq. miles (2883.429627 sq. km) Water area (2000): 34.156636 sq. miles (88.465277 sq. km) Total area (2000): 1147.455086 sq. miles (2971.894904 sq. km) Located within: Idaho (ID), FIPS 16 Location: 42.777785 N, 112.346267 W Headwords: Bannock Bannock, ID Bannock County Bannock County, ID