Home Postcode finder SA Eudunda Eudunda postcode SA Eudunda is a locality in South Australia covered by postcode 5374. Postcode 5374 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Eudunda business listing More business listings in Eudunda Businesses in EudundaEudunda Area SchoolMorgan Rd · 08 85811500St John's Lutheran Primary School8 Ward St · 08 85811282 Common questionsWhat is the postcode for Eudunda?Eudunda, SA has the postcode 5374.What state is Eudunda in?Eudunda is in South Australia (SA).Does postcode 5374 cover more than one suburb?Yes. Postcode 5374 covers 15 localities, so the postcode alone does not identify Eudunda. Browse other postcodes in South Australia, or widen the search to every Australian postcode.