What are the Oakland, Maryland Zip Codes for 2020, 2019Primary Zip Codes for OaklandZip CodePrimary CitySecondary City21550OaklandOakland, Hutton, Loch Lyn Hght, Mnt Lake Park, Mt Lake Park, Mtin Lk Park, Crellin, Deer Park, Loch Lynn Heights, Mountain Lake ParkCities sharing Zip Codes with OaklandZip CodePrimary CitySecondary CityMore Information21550OaklandHutton21550OaklandLoch Lyn Hght21550OaklandMnt Lake Park21550OaklandMt Lake Park21550OaklandMtin Lk Park21550OaklandCrellin Crellin population stats 21550OaklandDeer Park Deer Park population stats 21550OaklandLoch Lynn Heights Loch Lynn Heights population stats 21550OaklandMountain Lake Park Mountain Lake Park population stats Advertisements