Home Postcode finder VIC Grey River Grey River postcode VIC Grey River is a locality in Victoria covered by postcode 3221. Postcode 3221 State or territory Victoria (VIC) Region Vic Far Country Add a free Grey River business listing Be the first listing in Grey River Common questionsWhat is the postcode for Grey River?Grey River, VIC has the postcode 3221.What state is Grey River in?Grey River is in Victoria (VIC).Does postcode 3221 cover more than one suburb?Yes. Postcode 3221 covers 20 localities, so the postcode alone does not identify Grey River. Browse other postcodes in Victoria, or widen the search to every Australian postcode.