Home Postcode finder VIC St Leonards St Leonards postcode VIC St Leonards is a locality in Victoria covered by postcode 3223. Postcode 3223 State or territory Victoria (VIC) Region Vic Far Country Add a free St Leonards business listing More business listings in St Leonards Businesses in St LeonardsSt Leonards Primary School1341 Murradoc Rd · 03 52571460 Common questionsWhat is the postcode for St Leonards?St Leonards, VIC has the postcode 3223.What state is St Leonards in?St Leonards is in Victoria (VIC).Does postcode 3223 cover more than one suburb?Yes. Postcode 3223 covers 3 localities, so the postcode alone does not identify St Leonards. Browse other postcodes in Victoria, or widen the search to every Australian postcode.