Home Postcode finder SA Felixstow Felixstow postcode SA Felixstow is a locality in South Australia covered by postcode 5070. Postcode 5070 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Felixstow business listing More business listings in Felixstow Businesses in FelixstowPure Built Services11 Cadna Ave, Felixstow SA 5070, Australia · 0419 038 747 Common questionsWhat is the postcode for Felixstow?Felixstow, SA has the postcode 5070.What state is Felixstow in?Felixstow is in South Australia (SA).Does postcode 5070 cover more than one suburb?Yes. Postcode 5070 covers 9 localities, so the postcode alone does not identify Felixstow. Browse other postcodes in South Australia, or widen the search to every Australian postcode.