Where is Zip Code 55814 map for 2020, 2019Primary Zip Codes for 55814Zip CodePrimary CitySecondary City55814DuluthDuluth, Federal Prison, Dlth Fed PrisCities sharing Zip Codes with 55814Zip CodePrimary CitySecondary CityMore Information55701AdolphDuluth Duluth population stats 55814DuluthDlth Fed Pris55814DuluthDuluth Federal Prison55801DuluthDuluth Duluth population stats 55802DuluthDuluth Duluth population stats 55803DuluthDuluth Duluth population stats 55804DuluthDuluth Duluth population stats 55805DuluthDuluth Duluth population stats 55806DuluthDuluth Duluth population stats 55807DuluthDuluth Duluth population stats 55808DuluthDuluth Duluth population stats 55810DuluthDuluth Duluth population stats 55811DuluthDuluth Duluth population stats 55812DuluthDuluth Duluth population stats 55815DuluthDuluth Duluth population stats 55816DuluthDuluth Duluth population stats Advertisements