Home Postcode finder SA Alawoona Alawoona postcode SA Alawoona is a locality in South Australia covered by postcode 5311. Postcode 5311 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Alawoona business listing Be the first listing in Alawoona Common questionsWhat is the postcode for Alawoona?Alawoona, SA has the postcode 5311.What state is Alawoona in?Alawoona is in South Australia (SA).Does postcode 5311 cover more than one suburb?Yes. Postcode 5311 covers 13 localities, so the postcode alone does not identify Alawoona. Browse other postcodes in South Australia, or widen the search to every Australian postcode.