Home Postcode finder SA Manna Hill Manna Hill postcode SA Manna Hill is a locality in South Australia covered by postcode 5440. Postcode 5440 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Manna Hill business listing Be the first listing in Manna Hill Common questionsWhat is the postcode for Manna Hill?Manna Hill, SA has the postcode 5440.What state is Manna Hill in?Manna Hill is in South Australia (SA).Does postcode 5440 cover more than one suburb?Yes. Postcode 5440 covers 7 localities, so the postcode alone does not identify Manna Hill. Browse other postcodes in South Australia, or widen the search to every Australian postcode.