Home Postcodes by state SA 5523 Postcode 5523 5523 is the postcode for 10 localities in SA: Beetaloo, Clements Gap, Crystal Brook, Huddleston, Merriton, Narridy and 4 more. Localities with postcode 5523BeetalooSAClements GapSACrystal BrookSAHuddlestonSAMerritonSANarridySANuromSAWandearahSAWandearah EastSAWandearah WestSA Postcode 5523 State or territory South Australia (SA) Localities 10 Council area Mainly Barunga West, partly Port Pirie; Port Pirie; Northern Areas Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5522 · Postcode 5540