Home Postcode finder VIC Greta Greta postcode VIC Greta is a locality in Victoria covered by postcode 3675. Postcode 3675 State or territory Victoria (VIC) Region Vic Far Country Add a free Greta business listing Be the first listing in Greta Common questionsWhat is the postcode for Greta?Greta, VIC has the postcode 3675.What state is Greta in?Greta is in Victoria (VIC).Does postcode 3675 cover more than one suburb?Yes. Postcode 3675 covers 10 localities, so the postcode alone does not identify Greta. Browse other postcodes in Victoria, or widen the search to every Australian postcode.