Home Postcodes by state SA 5554 Postcode 5554 5554 is the postcode for 10 localities in SA: Boors Plain, Cunliffe, Jericho, Jerusalem, Kadina, Matta Flat and 4 more. Localities with postcode 5554Boors PlainSACunliffeSAJerichoSAJerusalemSAKadinaSAMatta FlatSANew TownSAThomas PlainSAWallaroo MinesSAWillamulkaSA Postcode 5554 State or territory South Australia (SA) Localities 10 Council area Copper Coast; Barunga West Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5552 · Postcode 5555