Home Postcode finder SA Olary Olary postcode SA Olary 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 Olary business listing Be the first listing in Olary Common questionsWhat is the postcode for Olary?Olary, SA has the postcode 5440.What state is Olary in?Olary 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 Olary. Browse other postcodes in South Australia, or widen the search to every Australian postcode.