What are the Royal Oak, Arkansas Zip Codes for 2020, 2019Primary Zip Codes for Royal OakZip CodePrimary CitySecondary City72103MabelvaleRoyal Oak, Shannon HillsCities sharing Zip Codes with Royal OakZip CodePrimary CitySecondary CityMore Information72103MabelvaleRoyal Oak72103MabelvaleShannon Hills Shannon Hills population stats Advertisements