Home Postcode finder VIC Ironbark Ironbark postcode VIC Ironbark is a locality in Victoria covered by postcode 3550. Postcode 3550 State or territory Victoria (VIC) Region Vic Country Add a free Ironbark business listing Be the first listing in Ironbark Common questionsWhat is the postcode for Ironbark?Ironbark, VIC has the postcode 3550.What state is Ironbark in?Ironbark is in Victoria (VIC).Does postcode 3550 cover more than one suburb?Yes. Postcode 3550 covers 14 localities, so the postcode alone does not identify Ironbark. Browse other postcodes in Victoria, or widen the search to every Australian postcode.