Home Postcode finder VIC Toongabbie Toongabbie postcode VIC Toongabbie is a locality in Victoria covered by postcode 3856. Postcode 3856 State or territory Victoria (VIC) Region Vic Far Country Add a free Toongabbie business listing More business listings in Toongabbie Businesses in ToongabbieToongabbie Primary SchoolVictoria St · 03 51924384 Common questionsWhat is the postcode for Toongabbie?Toongabbie, VIC has the postcode 3856.What state is Toongabbie in?Toongabbie is in Victoria (VIC).Does postcode 3856 cover more than one suburb?No. Postcode 3856 covers Toongabbie only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in Victoria, or widen the search to every Australian postcode.