Home Postcode finder VIC Pioneer Bay Pioneer Bay postcode VIC Pioneer Bay is a locality in Victoria covered by postcode 3984. Postcode 3984 State or territory Victoria (VIC) Region Vic Far Country Add a free Pioneer Bay business listing Be the first listing in Pioneer Bay Common questionsWhat is the postcode for Pioneer Bay?Pioneer Bay, VIC has the postcode 3984.What state is Pioneer Bay in?Pioneer Bay is in Victoria (VIC).Does postcode 3984 cover more than one suburb?Yes. Postcode 3984 covers 13 localities, so the postcode alone does not identify Pioneer Bay. Browse other postcodes in Victoria, or widen the search to every Australian postcode.