Home Postcode finder SA Paramatta Paramatta postcode SA Paramatta is a locality in South Australia covered by postcode 5558. Postcode 5558 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Paramatta business listing Be the first listing in Paramatta Common questionsWhat is the postcode for Paramatta?Paramatta, SA has the postcode 5558.What state is Paramatta in?Paramatta is in South Australia (SA).Does postcode 5558 cover more than one suburb?Yes. Postcode 5558 covers 14 localities, so the postcode alone does not identify Paramatta. Browse other postcodes in South Australia, or widen the search to every Australian postcode.