Home Postcode finder SA West Richmond West Richmond postcode SA West Richmond is a locality in South Australia covered by postcode 5033. Postcode 5033 State or territory South Australia (SA) Region Adelaide Add a free West Richmond business listing Be the first listing in West Richmond Common questionsWhat is the postcode for West Richmond?West Richmond, SA has the postcode 5033.What state is West Richmond in?West Richmond is in South Australia (SA).Does postcode 5033 cover more than one suburb?Yes. Postcode 5033 covers 6 localities, so the postcode alone does not identify West Richmond. Browse other postcodes in South Australia, or widen the search to every Australian postcode.