Home Postcode finder VIC Haddon Haddon postcode VIC Haddon is a locality in Victoria covered by postcode 3351. Postcode 3351 State or territory Victoria (VIC) Region Vic Country Add a free Haddon business listing More business listings in Haddon Businesses in HaddonBallarat Vacate Cleaners69 Haddon School Road · 0448200684Ballarat Vacate Cleaners69 · 0448 200 684Haddon Primary School398 Sago Hill Rd · 03 53424487 Common questionsWhat is the postcode for Haddon?Haddon, VIC has the postcode 3351.What state is Haddon in?Haddon is in Victoria (VIC).Does postcode 3351 cover more than one suburb?Yes. Postcode 3351 covers 27 localities, so the postcode alone does not identify Haddon. Browse other postcodes in Victoria, or widen the search to every Australian postcode.