Home Postcode finder SA Wilkawatt Wilkawatt postcode SA Wilkawatt is a locality in South Australia covered by postcode 5301. Postcode 5301 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Wilkawatt business listing Be the first listing in Wilkawatt Common questionsWhat is the postcode for Wilkawatt?Wilkawatt, SA has the postcode 5301.What state is Wilkawatt in?Wilkawatt is in South Australia (SA).Does postcode 5301 cover more than one suburb?Yes. Postcode 5301 covers 9 localities, so the postcode alone does not identify Wilkawatt. Browse other postcodes in South Australia, or widen the search to every Australian postcode.