Home Postcode finder SA Flagstaff Hill Flagstaff Hill postcode SA Flagstaff Hill is a locality in South Australia covered by postcode 5159. Postcode 5159 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Flagstaff Hill business listing More business listings in Flagstaff Hill Businesses in Flagstaff HillBubble And Bee11 Evergreen Parade · 0402 469 605Craigburn Primary School15 Murrays Hill Rd · 08 82704144Flagstaff Hill Junior Primary School145 Black Rd · 08 82701744 Common questionsWhat is the postcode for Flagstaff Hill?Flagstaff Hill, SA has the postcode 5159.What state is Flagstaff Hill in?Flagstaff Hill is in South Australia (SA).Does postcode 5159 cover more than one suburb?Yes. Postcode 5159 covers 4 localities, so the postcode alone does not identify Flagstaff Hill. Browse other postcodes in South Australia, or widen the search to every Australian postcode.