Home Postcode finder SA Barmera Barmera postcode SA Barmera is a locality in South Australia covered by postcode 5345. Postcode 5345 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Barmera business listing More business listings in Barmera Businesses in BarmeraBarmera Primary SchoolRumbold Drive · 08 85882198St Joseph's School8 Joyce St · 08 85882154 Common questionsWhat is the postcode for Barmera?Barmera, SA has the postcode 5345.What state is Barmera in?Barmera is in South Australia (SA).Does postcode 5345 cover more than one suburb?Yes. Postcode 5345 covers 3 localities, so the postcode alone does not identify Barmera. Browse other postcodes in South Australia, or widen the search to every Australian postcode.