ZIP prefix directory

504xxZIP prefix 504 — Places & codes

These 57 ZIP codes share the opening digits 504. Follow the smaller groups or open a code to explore its city, county and postal location.

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57ZIP codes
Recorded ZIP range
50401–50484
Associated states & postal regions
1

Not every number in this interval is assigned. These groups describe postal numbers, not state borders or official delivery boundaries. Counts follow the primary place listed for each ZIP in the current directory.

Associated states & postal regions

504xx · ZIP codes

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ZIPCityState / postal regionCounty associationView all
50401Mason CityIACerro Gordo↗
50402Mason CityIACerro Gordo↗
50420AlexanderIAFranklin↗
50421BelmondIAWright↗
50423BrittIAHancock↗
50424Buffalo CenterIAWinnebago↗
50426CarpenterIAMitchell↗
50427ChapinIAFranklin↗
50428Clear LakeIACerro Gordo↗
50430CorwithIAHancock↗
50431CoulterIAFranklin↗
50432Crystal LakeIAHancock↗
50433DoughertyIACerro Gordo↗
50434FertileIAWorth↗
50435FloydIAFloyd↗
50436Forest CityIAWinnebago↗
50438GarnerIAHancock↗
50439GoodellIAHancock↗
50440GraftonIAWorth↗
50441HamptonIAFranklin↗
50444HanlontownIAWorth↗
50446JoiceIAWorth↗
50447KanawhaIAHancock↗
50448KensettIAWorth↗
50449KlemmeIAHancock↗
50450Lake MillsIAWinnebago↗
50451LakotaIAKossuth↗
50452LatimerIAFranklin↗
50453LelandIAWinnebago↗
50454Little CedarIAMitchell↗
50455Mc IntireIAMitchell↗
50456ManlyIAWorth↗
50457MeserveyIACerro Gordo↗
50458Nora SpringsIAFloyd↗
50459NorthwoodIAWorth↗
50460OrchardIAMitchell↗
50461OsageIAMitchell↗
50464PlymouthIACerro Gordo↗
50465RakeIAWinnebago↗
50466RicevilleIAHoward↗
50467Rock FallsIACerro Gordo↗
50468RockfordIAFloyd↗
50469RockwellIACerro Gordo↗
50470RowanIAWright↗
50471RuddIAFloyd↗
50472Saint AnsgarIAMitchell↗
50473ScarvilleIAWinnebago↗
50475SheffieldIAFranklin↗
50476StacyvilleIAMitchell↗
50477SwaledaleIACerro Gordo↗
50478ThompsonIAWinnebago↗
50479ThorntonIACerro Gordo↗
50480TitonkaIAKossuth↗
50481ToetervilleIAMitchell↗
50482VenturaIACerro Gordo↗
50483WesleyIAKossuth↗
50484WodenIAHancock↗

ZIP codes organize mail delivery, not administrative boundaries. A code can have several city or county associations. Coordinates are approximate; verify delivery addresses with your carrier.

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