Home Postcodes by state SA 5259 Postcode 5259 5259 is the postcode for 12 localities in SA: Ashville, Jervois, Kepa, Malinong, Narrung, Naturi and 6 more. Localities with postcode 5259AshvilleSAJervoisSAKepaSAMalinongSANarrungSANaturiSAPoint McleaySAPoltallochSARaukkanSATailem BendSAWellingtonSAWellington EastSA Postcode 5259 State or territory South Australia (SA) Localities 12 Council area Coorong; Murray Bridge; Mainly Coorong, partly Murray Bridge Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5256 · Postcode 5260