Home Postcode finder VIC Tanwood Tanwood postcode VIC Tanwood is a locality in Victoria covered by postcode 3478. Postcode 3478 State or territory Victoria (VIC) Region Vic Far Country Add a free Tanwood business listing Be the first listing in Tanwood Common questionsWhat is the postcode for Tanwood?Tanwood, VIC has the postcode 3478.What state is Tanwood in?Tanwood is in Victoria (VIC).Does postcode 3478 cover more than one suburb?Yes. Postcode 3478 covers 8 localities, so the postcode alone does not identify Tanwood. Browse other postcodes in Victoria, or widen the search to every Australian postcode.