Home Postcode finder VIC Gonn Crossing Gonn Crossing postcode VIC Gonn Crossing is a locality in Victoria covered by postcode 3579. Postcode 3579 State or territory Victoria (VIC) Region Vic Far Country Add a free Gonn Crossing business listing Be the first listing in Gonn Crossing Common questionsWhat is the postcode for Gonn Crossing?Gonn Crossing, VIC has the postcode 3579.What state is Gonn Crossing in?Gonn Crossing is in Victoria (VIC).Does postcode 3579 cover more than one suburb?Yes. Postcode 3579 covers 29 localities, so the postcode alone does not identify Gonn Crossing. Browse other postcodes in Victoria, or widen the search to every Australian postcode.