Home Postcode finder SA Port Macdonnell Port Macdonnell postcode SA Port Macdonnell is a locality in South Australia covered by postcode 5291. Postcode 5291 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Port Macdonnell business listing More business listings in Port Macdonnell Businesses in Port MacdonnellPippi Shack926 Eight Mile Creek Road · 0407 239 361 Common questionsWhat is the postcode for Port Macdonnell?Port Macdonnell, SA has the postcode 5291.What state is Port Macdonnell in?Port Macdonnell is in South Australia (SA).Does postcode 5291 cover more than one suburb?Yes. Postcode 5291 covers 34 localities, so the postcode alone does not identify Port Macdonnell. Browse other postcodes in South Australia, or widen the search to every Australian postcode.