Home Postcode finder VIC Fernbank Fernbank postcode VIC Fernbank is a locality in Victoria covered by postcode 3864. Postcode 3864 State or territory Victoria (VIC) Region Vic Far Country Add a free Fernbank business listing Be the first listing in Fernbank Common questionsWhat is the postcode for Fernbank?Fernbank, VIC has the postcode 3864.What state is Fernbank in?Fernbank is in Victoria (VIC).Does postcode 3864 cover more than one suburb?Yes. Postcode 3864 covers 3 localities, so the postcode alone does not identify Fernbank. Browse other postcodes in Victoria, or widen the search to every Australian postcode.