Home Postcode finder VIC Billabong Billabong postcode VIC Billabong is a locality in Victoria covered by postcode 3858. Postcode 3858 State or territory Victoria (VIC) Region Vic Far Country Add a free Billabong business listing Be the first listing in Billabong Common questionsWhat is the postcode for Billabong?Billabong, VIC has the postcode 3858.What state is Billabong in?Billabong is in Victoria (VIC).Does postcode 3858 cover more than one suburb?Yes. Postcode 3858 covers 20 localities, so the postcode alone does not identify Billabong. Browse other postcodes in Victoria, or widen the search to every Australian postcode.