Home Postcode finder SA Watraba Watraba postcode SA Watraba is a locality in South Australia covered by postcode 5690. Postcode 5690 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Watraba business listing Be the first listing in Watraba Common questionsWhat is the postcode for Watraba?Watraba, SA has the postcode 5690.What state is Watraba in?Watraba is in South Australia (SA).Does postcode 5690 cover more than one suburb?Yes. Postcode 5690 covers 19 localities, so the postcode alone does not identify Watraba. Browse other postcodes in South Australia, or widen the search to every Australian postcode.