Home Postcode finder SA Laura Bay Laura Bay postcode SA Laura Bay is a locality in South Australia covered by postcode 5680. Postcode 5680 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Laura Bay business listing Be the first listing in Laura Bay Common questionsWhat is the postcode for Laura Bay?Laura Bay, SA has the postcode 5680.What state is Laura Bay in?Laura Bay is in South Australia (SA).Does postcode 5680 cover more than one suburb?Yes. Postcode 5680 covers 20 localities, so the postcode alone does not identify Laura Bay. Browse other postcodes in South Australia, or widen the search to every Australian postcode.