Home Postcodes by state NSW 2138 Postcode 2138 2138 is the postcode for 3 localities in NSW: Concord West, Liberty Grove and Rhodes. Localities with postcode 2138Concord WestNSWLiberty GroveNSWRhodesNSW Postcode 2138 State or territory New South Wales (NSW) Localities 3 Council area Canada Bay Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2137 · Postcode 2140