Home Postcode finder SA Willochra Willochra postcode SA Willochra is a locality in South Australia covered by postcode 5433. Postcode 5433 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Willochra business listing Be the first listing in Willochra Common questionsWhat is the postcode for Willochra?Willochra, SA has the postcode 5433.What state is Willochra in?Willochra is in South Australia (SA).Does postcode 5433 cover more than one suburb?Yes. Postcode 5433 covers 6 localities, so the postcode alone does not identify Willochra. Browse other postcodes in South Australia, or widen the search to every Australian postcode.