Home Postcode finder SA Birkenhead Birkenhead postcode SA Birkenhead is a locality in South Australia covered by postcode 5015. Postcode 5015 State or territory South Australia (SA) Region Adelaide Add a free Birkenhead business listing More business listings in Birkenhead Businesses in BirkenheadInspect 24 Seven7 Mead Street · 417970164Le Fevre Peninsula Primary SchoolShorney St · 08 84496417 Common questionsWhat is the postcode for Birkenhead?Birkenhead, SA has the postcode 5015.What state is Birkenhead in?Birkenhead is in South Australia (SA).Does postcode 5015 cover more than one suburb?Yes. Postcode 5015 covers 5 localities, so the postcode alone does not identify Birkenhead. Browse other postcodes in South Australia, or widen the search to every Australian postcode.