Home Postcode finder VIC Nangana Nangana postcode VIC Nangana is a locality in Victoria covered by postcode 3781. Postcode 3781 State or territory Victoria (VIC) Region Ferntree Gully Add a free Nangana business listing Be the first listing in Nangana Common questionsWhat is the postcode for Nangana?Nangana, VIC has the postcode 3781.What state is Nangana in?Nangana is in Victoria (VIC).Does postcode 3781 cover more than one suburb?Yes. Postcode 3781 covers 3 localities, so the postcode alone does not identify Nangana. Browse other postcodes in Victoria, or widen the search to every Australian postcode.