. . . . . "-5" . . "267.919"^^ . "-4" . "37754" . . "Heiskell, Tennessee"@en . . "865" . "Heiskell is an unincorporated community in Knox and Anderson counties, Tennessee, United States. It is the location of a post office, assigned ZIP code 37754.Waste Management's Chestnut Ridge Landfill, which serves the metropolitan Knoxville region, is located in Heiskell near Interstate 75."@en .