Home Postcodes by state SA Inneston Inneston postcode SA Inneston is a locality in South Australia covered by postcode 5577. Postcode 5577 State or territory South Australia (SA) Region Sa Subs Near 1 Council area Yorke Peninsula Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Add a free Inneston business listing Be the first listing in Inneston Suburbs near InnestonStraight-line distance between locality centres.Marion BaySA 5575 · 5.3 kmStenhouse BaySA 5575 · 23.8 km Also in postcode 5577Foul BaySA 5577WarookaSA 5577 Common questionsWhat is the postcode for Inneston?Inneston, SA has the postcode 5577.What state is Inneston in?Inneston is in South Australia (SA).What council is Inneston in?Inneston is in the Yorke Peninsula local government area.Does postcode 5577 cover more than one suburb?Yes. Postcode 5577 covers 3 localities, so the postcode alone does not identify Inneston.What suburbs are near Inneston?The closest are Marion Bay (5.3 km) and Stenhouse Bay (23.8 km). Distances are straight lines between locality centres. Browse other postcodes in South Australia, or widen the search to every Australian postcode.