Home Postcode finder SA Douglas Point Douglas Point postcode SA Douglas Point is a locality in South Australia covered by postcode 5600. Postcode 5600 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Douglas Point business listing Be the first listing in Douglas Point Common questionsWhat is the postcode for Douglas Point?Douglas Point, SA has the postcode 5600.What state is Douglas Point in?Douglas Point is in South Australia (SA).Does postcode 5600 cover more than one suburb?Yes. Postcode 5600 covers 13 localities, so the postcode alone does not identify Douglas Point. Browse other postcodes in South Australia, or widen the search to every Australian postcode.