Home Postcode finder SA Bethel Bethel postcode SA Bethel is a locality in South Australia covered by postcode 5373. Postcode 5373 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Bethel business listing Be the first listing in Bethel Common questionsWhat is the postcode for Bethel?Bethel, SA has the postcode 5373.What state is Bethel in?Bethel is in South Australia (SA).Does postcode 5373 cover more than one suburb?Yes. Postcode 5373 covers 8 localities, so the postcode alone does not identify Bethel. Browse other postcodes in South Australia, or widen the search to every Australian postcode.