Home Postcode finder VIC Churchill Island Churchill Island postcode VIC Churchill Island is a locality in Victoria covered by postcode 3925. Postcode 3925 State or territory Victoria (VIC) Region Vic Far Country Add a free Churchill Island business listing Be the first listing in Churchill Island Common questionsWhat is the postcode for Churchill Island?Churchill Island, VIC has the postcode 3925.What state is Churchill Island in?Churchill Island is in Victoria (VIC).Does postcode 3925 cover more than one suburb?Yes. Postcode 3925 covers 4 localities, so the postcode alone does not identify Churchill Island. Browse other postcodes in Victoria, or widen the search to every Australian postcode.