Home Postcodes by state NSW 2043 Postcode 2043 2043 is the postcode for Erskineville, NSW. Localities with postcode 2043ErskinevilleNSW Postcode 2043 State or territory New South Wales (NSW) Localities 1 Council area Sydney Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2042 · Postcode 2044