Home Postcodes by state TAS 7213 Postcode 7213 7213 is the postcode for 3 localities in TAS: Avoca, Rossarden and Royal George. Localities with postcode 7213AvocaTASRossardenTASRoyal GeorgeTAS Postcode 7213 State or territory Tasmania (TAS) Localities 3 Council area Northern Midlands Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 7212 · Postcode 7214