Home Postcode finder SA Swanport Swanport postcode SA Swanport is a locality in South Australia covered by postcode 5253. Postcode 5253 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Swanport business listing Be the first listing in Swanport Common questionsWhat is the postcode for Swanport?Swanport, SA has the postcode 5253.What state is Swanport in?Swanport is in South Australia (SA).Does postcode 5253 cover more than one suburb?Yes. Postcode 5253 covers 25 localities, so the postcode alone does not identify Swanport. Browse other postcodes in South Australia, or widen the search to every Australian postcode.