Home Postcode finder VIC Bonn Bonn postcode VIC Bonn is a locality in Victoria covered by postcode 3561. Postcode 3561 State or territory Victoria (VIC) Region Vic Far Country Add a free Bonn business listing Be the first listing in Bonn Common questionsWhat is the postcode for Bonn?Bonn, VIC has the postcode 3561.What state is Bonn in?Bonn is in Victoria (VIC).Does postcode 3561 cover more than one suburb?Yes. Postcode 3561 covers 8 localities, so the postcode alone does not identify Bonn. Browse other postcodes in Victoria, or widen the search to every Australian postcode.