Home Postcode finder SA Port Flinders Port Flinders postcode SA Port Flinders is a locality in South Australia covered by postcode 5495. Postcode 5495 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Port Flinders business listing Be the first listing in Port Flinders Common questionsWhat is the postcode for Port Flinders?Port Flinders, SA has the postcode 5495.What state is Port Flinders in?Port Flinders is in South Australia (SA).Does postcode 5495 cover more than one suburb?Yes. Postcode 5495 covers 6 localities, so the postcode alone does not identify Port Flinders. Browse other postcodes in South Australia, or widen the search to every Australian postcode.