Home Postcode finder VIC Riggs Creek Riggs Creek postcode VIC Riggs Creek is a locality in Victoria covered by postcode 3666. Postcode 3666 State or territory Victoria (VIC) Region Vic Far Country Add a free Riggs Creek business listing Be the first listing in Riggs Creek Common questionsWhat is the postcode for Riggs Creek?Riggs Creek, VIC has the postcode 3666.What state is Riggs Creek in?Riggs Creek is in Victoria (VIC).Does postcode 3666 cover more than one suburb?Yes. Postcode 3666 covers 16 localities, so the postcode alone does not identify Riggs Creek. Browse other postcodes in Victoria, or widen the search to every Australian postcode.