Home Postcode finder SA Seaford Heights Seaford Heights postcode SA Seaford Heights is a locality in South Australia covered by postcode 5169. Postcode 5169 State or territory South Australia (SA) Region Adelaide Add a free Seaford Heights business listing More business listings in Seaford Heights Businesses in Seaford HeightsAccolade Dental Adelaide8 Vista Parade, Seaford Heights SA, Australia · 0410 059 928 Common questionsWhat is the postcode for Seaford Heights?Seaford Heights, SA has the postcode 5169.What state is Seaford Heights in?Seaford Heights is in South Australia (SA).Does postcode 5169 cover more than one suburb?Yes. Postcode 5169 covers 5 localities, so the postcode alone does not identify Seaford Heights. Browse other postcodes in South Australia, or widen the search to every Australian postcode.