Home Postcode finder SA Taplan Taplan postcode SA Taplan 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 Taplan business listing Be the first listing in Taplan Common questionsWhat is the postcode for Taplan?Taplan, SA has the postcode 5311.What state is Taplan in?Taplan 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 Taplan. Browse other postcodes in South Australia, or widen the search to every Australian postcode.