Home Postcodes by state TAS 7185 Postcode 7185 7185 is the postcode for Premaydena, TAS. Localities with postcode 7185PremaydenaTAS Postcode 7185 State or territory Tasmania (TAS) Localities 1 Council area Tasman Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 7184 · Postcode 7186