Home Postcode finder VIC Tonghi Creek Tonghi Creek postcode VIC Tonghi Creek is a locality in Victoria covered by postcode 3890. Postcode 3890 State or territory Victoria (VIC) Region Vic Far Country Add a free Tonghi Creek business listing Be the first listing in Tonghi Creek Common questionsWhat is the postcode for Tonghi Creek?Tonghi Creek, VIC has the postcode 3890.What state is Tonghi Creek in?Tonghi Creek is in Victoria (VIC).Does postcode 3890 cover more than one suburb?Yes. Postcode 3890 covers 7 localities, so the postcode alone does not identify Tonghi Creek. Browse other postcodes in Victoria, or widen the search to every Australian postcode.