Home Postcodes by state TAS 7019 Postcode 7019 7019 is the postcode for 3 localities in TAS: Clarendon Vale, Oakdowns and Rokeby. Localities with postcode 7019Clarendon ValeTASOakdownsTASRokebyTAS Postcode 7019 State or territory Tasmania (TAS) Localities 3 Council area Clarence Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 7018 · Postcode 7020