Home Postcode finder SA Waukaringa Waukaringa postcode SA Waukaringa is a locality in South Australia covered by postcode 5440. Postcode 5440 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Waukaringa business listing Be the first listing in Waukaringa Common questionsWhat is the postcode for Waukaringa?Waukaringa, SA has the postcode 5440.What state is Waukaringa in?Waukaringa is in South Australia (SA).Does postcode 5440 cover more than one suburb?Yes. Postcode 5440 covers 7 localities, so the postcode alone does not identify Waukaringa. Browse other postcodes in South Australia, or widen the search to every Australian postcode.