Home Postcodes by state NSW 2115 Postcode 2115 2115 is the postcode for Ermington, NSW. Localities with postcode 2115ErmingtonNSW Postcode 2115 State or territory New South Wales (NSW) Localities 1 Council area Parramatta Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2114 · Postcode 2116