Home Postcode finder SA Pinnaroo Pinnaroo postcode SA Pinnaroo is a locality in South Australia covered by postcode 5304. Postcode 5304 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Pinnaroo business listing More business listings in Pinnaroo Businesses in PinnarooPinnaroo Primary SchoolBundey Terrace · 08 85778176 Common questionsWhat is the postcode for Pinnaroo?Pinnaroo, SA has the postcode 5304.What state is Pinnaroo in?Pinnaroo is in South Australia (SA).Does postcode 5304 cover more than one suburb?Yes. Postcode 5304 covers 3 localities, so the postcode alone does not identify Pinnaroo. Browse other postcodes in South Australia, or widen the search to every Australian postcode.