Home Postcode finder SA Monbulla Monbulla postcode SA Monbulla is a locality in South Australia covered by postcode 5277. Postcode 5277 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Monbulla business listing Be the first listing in Monbulla Common questionsWhat is the postcode for Monbulla?Monbulla, SA has the postcode 5277.What state is Monbulla in?Monbulla is in South Australia (SA).Does postcode 5277 cover more than one suburb?Yes. Postcode 5277 covers 8 localities, so the postcode alone does not identify Monbulla. Browse other postcodes in South Australia, or widen the search to every Australian postcode.