Home Postcode finder SA Woomera Woomera postcode SA Woomera is a locality in South Australia covered by postcode 5720. Postcode 5720 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Woomera business listing More business listings in Woomera Businesses in WoomeraWoomera Area SchoolDewrang Ave · 08 86737287 Common questionsWhat is the postcode for Woomera?Woomera, SA has the postcode 5720.What state is Woomera in?Woomera is in South Australia (SA).Does postcode 5720 cover more than one suburb?Yes. Postcode 5720 covers 2 localities, so the postcode alone does not identify Woomera. Browse other postcodes in South Australia, or widen the search to every Australian postcode.