Home Postcodes by state NSW 2130 Postcode 2130 2130 is the postcode for Summer Hill, NSW. Localities with postcode 2130Summer HillNSW Postcode 2130 State or territory New South Wales (NSW) Localities 1 Council area Inner West Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2128 · Postcode 2131