Home Postcode finder VIC Dennington Dennington postcode VIC Dennington is a locality in Victoria covered by postcode 3280. Postcode 3280 State or territory Victoria (VIC) Region Vic Far Country Add a free Dennington business listing More business listings in Dennington Businesses in DenningtonSt John's School20 Tylden St · 03 55625362 Common questionsWhat is the postcode for Dennington?Dennington, VIC has the postcode 3280.What state is Dennington in?Dennington is in Victoria (VIC).Does postcode 3280 cover more than one suburb?Yes. Postcode 3280 covers 4 localities, so the postcode alone does not identify Dennington. Browse other postcodes in Victoria, or widen the search to every Australian postcode.