Home Postcode finder VIC St James St James postcode VIC St James is a locality in Victoria covered by postcode 3727. Postcode 3727 State or territory Victoria (VIC) Region Vic Far Country Add a free St James business listing Be the first listing in St James Common questionsWhat is the postcode for St James?St James, VIC has the postcode 3727.What state is St James in?St James is in Victoria (VIC).Does postcode 3727 cover more than one suburb?Yes. Postcode 3727 covers 5 localities, so the postcode alone does not identify St James. Browse other postcodes in Victoria, or widen the search to every Australian postcode.