Home Postcodes by state SA Nepean Bay Nepean Bay postcode SA Nepean Bay 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 Nepean Bay business listing Be the first listing in Nepean Bay Suburbs near Nepean BayStraight-line distance between locality centres.HainesSA 5223 · 5.2 kmBrownlow KiSA 5223 · 9.0 kmKingscoteSA 5223 · 9.7 kmMustonSA 5221 · 11.3 kmAmerican RiverSA 5221 · 12.0 kmCygnet RiverSA 5223 · 12.5 kmBallast HeadSA 5221 · 12.7 kmSapphiretownSA 5222 · 13.3 kmBirchmoreSA 5223 · 13.4 kmIsland BeachSA 5222 · 15.1 kmPelican LagoonSA 5222 · 15.8 kmMenziesSA 5223 · 16.8 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 5223Middle RiverSA 5223NewlandSA 5223North CapeSA 5223Seal BaySA 5223SeddonSA 5223Stokes BaySA 5223Stun'Sail BoomSA 5223Vivonne BaySA 5223Western RiverSA 5223WisangerSA 5223 Common questionsWhat is the postcode for Nepean Bay?Nepean Bay, SA has the postcode 5223.What state is Nepean Bay in?Nepean Bay is in South Australia (SA).What council is Nepean Bay in?Nepean Bay 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 Nepean Bay.What suburbs are near Nepean Bay?The closest are Haines (5.2 km), Brownlow Ki (9.0 km), Kingscote (9.7 km), Muston (11.3 km) and American River (12.0 km). Distances are straight lines between locality centres. Browse other postcodes in South Australia, or widen the search to every Australian postcode.