Home Postcode finder SA Gawler Gawler postcode SA Gawler is a locality in South Australia covered by postcode 5118. Postcode 5118 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Gawler business listing More business listings in Gawler Businesses in GawlerEvanston Primary School30 Para Rd · 08 85222622Gawler Primary SchoolSchool Lane · 08 85222988Xavier CollegeKentish Rd · 08 85230088 Common questionsWhat is the postcode for Gawler?Gawler, SA has the postcode 5118.What state is Gawler in?Gawler is in South Australia (SA).Does postcode 5118 cover more than one suburb?Yes. Postcode 5118 covers 16 localities, so the postcode alone does not identify Gawler. Browse other postcodes in South Australia, or widen the search to every Australian postcode.