Home Postcodes by state SA 5311 Postcode 5311 5311 is the postcode for 13 localities in SA: Alawoona, Billiatt, Bugle Hut, Maggea, Malpas, Meribah and 7 more. Localities with postcode 5311AlawoonaSABilliattSABugle HutSAMaggeaSAMalpasSAMeribahSAParunaSASchell WellSATaldraSATaplanSAVeitchSAWoodleighSAWunkarSA Postcode 5311 State or territory South Australia (SA) Localities 13 Council area Loxton Waikerie Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5310 · Postcode 5320