Home Postcode finder VIC St Helens St Helens postcode VIC St Helens is a locality in Victoria covered by postcode 3285. Postcode 3285 State or territory Victoria (VIC) Region Vic Far Country Add a free St Helens business listing Be the first listing in St Helens Common questionsWhat is the postcode for St Helens?St Helens, VIC has the postcode 3285.What state is St Helens in?St Helens is in Victoria (VIC).Does postcode 3285 cover more than one suburb?Yes. Postcode 3285 covers 8 localities, so the postcode alone does not identify St Helens. Browse other postcodes in Victoria, or widen the search to every Australian postcode.