Home Postcode finder SA Maude Maude postcode SA Maude is a locality in South Australia covered by postcode 5320. Postcode 5320 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Maude business listing Be the first listing in Maude Common questionsWhat is the postcode for Maude?Maude, SA has the postcode 5320.What state is Maude in?Maude is in South Australia (SA).Does postcode 5320 cover more than one suburb?Yes. Postcode 5320 covers 13 localities, so the postcode alone does not identify Maude. Browse other postcodes in South Australia, or widen the search to every Australian postcode.