Home Postcodes by state NSW 2135 Postcode 2135 2135 is the postcode for Strathfield, NSW. Localities with postcode 2135StrathfieldNSW Postcode 2135 State or territory New South Wales (NSW) Localities 1 Council area Mainly Strathfield, partly Burwood Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2134 · Postcode 2136