ZIP prefix directory

506xxZIP prefix 506 — Places & codes

These 70 ZIP codes share the opening digits 506. Follow the smaller groups or open a code to explore its city, county and postal location.

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70ZIP codes
Recorded ZIP range
50601–50682
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

506xx · ZIP codes

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ZIPCityState / postal regionCounty associationView all
50601AckleyIAHardin↗
50602AllisonIAButler↗
50603Alta VistaIAChickasaw↗
50604AplingtonIAButler↗
50605AredaleIAButler↗
50606ArlingtonIAFayette↗
50607AuroraIABuchanan↗
50608AustinvilleIAButler↗
50609BeamanIAGrundy↗
50611BristowIAButler↗
50612BuckinghamIATama↗
50613Cedar FallsIABlack Hawk↗
50614Cedar FallsIABlack Hawk↗
50616Charles CityIAFloyd↗
50619ClarksvilleIAButler↗
50620ColwellIAFloyd↗
50621ConradIAGrundy↗
50622DenverIABremer↗
50623DewarIABlack Hawk↗
50624DikeIAGrundy↗
50625DumontIAButler↗
50626DunkertonIABlack Hawk↗
50627EldoraIAHardin↗
50628ElmaIAHoward↗
50629FairbankIABuchanan↗
50630FredericksburgIAChickasaw↗
50631FrederikaIABremer↗
50632GarwinIATama↗
50633GenevaIAFranklin↗
50634GilbertvilleIABlack Hawk↗
50635GladbrookIATama↗
50636GreeneIAButler↗
50638Grundy CenterIAGrundy↗
50641HazletonIABuchanan↗
50642HollandIAGrundy↗
50643HudsonIABlack Hawk↗
50644IndependenceIABuchanan↗
50645IoniaIAChickasaw↗
50647JanesvilleIABremer↗
50648JesupIABuchanan↗
50649KesleyIAButler↗
50650LamontIABuchanan↗
50651La Porte CityIABlack Hawk↗
50652LincolnIATama↗
50653Marble RockIAFloyd↗
50654MasonvilleIADelaware↗
50655MaynardIAFayette↗
50657MorrisonIAGrundy↗
50658NashuaIAChickasaw↗
50659New HamptonIAChickasaw↗
50660New HartfordIAButler↗
50661North WashingtonIAChickasaw↗
50662OelweinIAFayette↗
50664OranIAFayette↗
50665ParkersburgIAButler↗
50666PlainfieldIABremer↗
50667RaymondIABlack Hawk↗
50668ReadlynIABremer↗
50669ReinbeckIAGrundy↗
50670Shell RockIAButler↗

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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