Home Postcode finder SA Mannanarie Mannanarie postcode SA Mannanarie is a locality in South Australia covered by postcode 5422. Postcode 5422 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Mannanarie business listing Be the first listing in Mannanarie Common questionsWhat is the postcode for Mannanarie?Mannanarie, SA has the postcode 5422.What state is Mannanarie in?Mannanarie is in South Australia (SA).Does postcode 5422 cover more than one suburb?Yes. Postcode 5422 covers 13 localities, so the postcode alone does not identify Mannanarie. Browse other postcodes in South Australia, or widen the search to every Australian postcode.