Home Postcodes by state SA Middle River Middle River postcode SA Middle River is a locality in South Australia covered by postcode 5223. Postcode 5223 State or territory South Australia (SA) Region Sa Subs Near 2 Council area Kangaroo Island Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Add a free Middle River business listing Be the first listing in Middle River Suburbs near Middle RiverStraight-line distance between locality centres.DuncanSA 5223 · 10.0 kmGosseSA 5223 · 11.6 kmWestern RiverSA 5223 · 14.4 kmStokes BaySA 5223 · 15.7 kmNewlandSA 5223 · 17.7 kmParndanaSA 5220 · 19.6 kmCassiniSA 5223 · 20.6 kmDe Mole RiverSA 5223 · 23.5 km Also in postcode 5223Bay Of ShoalsSA 5223BirchmoreSA 5223Brownlow KiSA 5223Cape BordaSA 5223CassiniSA 5223Cygnet RiverSA 5223D'Estrees BaySA 5223De Mole RiverSA 5223DuncanSA 5223Emu BaySA 5223Flinders ChaseSA 5223GosseSA 5223HainesSA 5223Harriet RiverSA 5223KarattaSA 5223KingscoteSA 5223KohinoorSA 5223MacgillivraySA 5223MenziesSA 5223Nepean BaySA 5223NewlandSA 5223North CapeSA 5223Seal BaySA 5223SeddonSA 5223Stokes BaySA 5223Stun'Sail BoomSA 5223Vivonne BaySA 5223Western RiverSA 5223WisangerSA 5223 Common questionsWhat is the postcode for Middle River?Middle River, SA has the postcode 5223.What state is Middle River in?Middle River is in South Australia (SA).What council is Middle River in?Middle River is in the Kangaroo Island local government area.Does postcode 5223 cover more than one suburb?Yes. Postcode 5223 covers 30 localities, so the postcode alone does not identify Middle River.What suburbs are near Middle River?The closest are Duncan (10.0 km), Gosse (11.6 km), Western River (14.4 km), Stokes Bay (15.7 km) and Newland (17.7 km). Distances are straight lines between locality centres. Browse other postcodes in South Australia, or widen the search to every Australian postcode.