主要城市地区邮政编码
MarylandNorth CarolinaNew YorkPennsylvaniaArkansasMissouriMontanaNevadaRhode IslandDistrict of ColumbiaLouisianaVirginiaCaliforniaMichiganConnecticutDelawareMississippiTexasAlaskaColoradoNew HampshireNew JerseyNorth DakotaArizonaUtahIdahoKentuckyWest VirginiaIllinoisSouth DakotaOregonWyomingAlabamaNew MexicoMaineOklahomaHawaiiIndianaMassachusettsWashingtonWisconsinIowaSouth CarolinaMinnesotaOhioNebraskaTennesseeKansasVermontFloridaGeorgia
