Home Postcodes by state TAS 7117 Postcode 7117 7117 is the postcode for Dover, TAS. Localities with postcode 7117DoverTAS Postcode 7117 State or territory Tasmania (TAS) Localities 1 Council area Huon Valley Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 7116 · Postcode 7119