Home Postcodes by state SA 5340 Postcode 5340 5340 is the postcode for 6 localities in SA: Mundic Creek, Murtho, Paringa, Pike River, Wonuarra and Yamba. Localities with postcode 5340Mundic CreekSAMurthoSAParingaSAPike RiverSAWonuarraSAYambaSA Postcode 5340 State or territory South Australia (SA) Localities 6 Council area Renmark Paringa Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5333 · Postcode 5341