Home Postcode finder SA Sellicks Hill Sellicks Hill postcode SA Sellicks Hill is a locality in South Australia covered by postcode 5174. Postcode 5174 State or territory South Australia (SA) Region Adelaide Add a free Sellicks Hill business listing Be the first listing in Sellicks Hill Common questionsWhat is the postcode for Sellicks Hill?Sellicks Hill, SA has the postcode 5174.What state is Sellicks Hill in?Sellicks Hill is in South Australia (SA).Does postcode 5174 cover more than one suburb?Yes. Postcode 5174 covers 2 localities, so the postcode alone does not identify Sellicks Hill. Browse other postcodes in South Australia, or widen the search to every Australian postcode.