Home Postcode finder VIC Rose River Rose River postcode VIC Rose River is a locality in Victoria covered by postcode 3678. Postcode 3678 State or territory Victoria (VIC) Region Vic Far Country Add a free Rose River business listing Be the first listing in Rose River Common questionsWhat is the postcode for Rose River?Rose River, VIC has the postcode 3678.What state is Rose River in?Rose River is in Victoria (VIC).Does postcode 3678 cover more than one suburb?Yes. Postcode 3678 covers 35 localities, so the postcode alone does not identify Rose River. Browse other postcodes in Victoria, or widen the search to every Australian postcode.