Home Postcode finder VIC Diamond Creek Diamond Creek postcode VIC Diamond Creek is a locality in Victoria covered by postcode 3089. Postcode 3089 State or territory Victoria (VIC) Region Melbourne North West Add a free Diamond Creek business listing More business listings in Diamond Creek Businesses in Diamond CreekDentessence43 Chute Street, Diamond Creek VIC 3089, Australia · (03) 9438 5103Diamond Creek East Primary SchoolHurstbridge Rd · 03 94381413Diamond Creek Primary SchoolClyde St · 03 94381108 Common questionsWhat is the postcode for Diamond Creek?Diamond Creek, VIC has the postcode 3089.What state is Diamond Creek in?Diamond Creek is in Victoria (VIC).Does postcode 3089 cover more than one suburb?No. Postcode 3089 covers Diamond Creek only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in Victoria, or widen the search to every Australian postcode.