Home Postcodes by state NSW 2145 Postcode 2145 2145 is the postcode for 9 localities in NSW: Constitution Hill, Girraween, Greystanes, Mays Hill, Pemulwuy, Pendle Hill and 3 more. Localities with postcode 2145Constitution HillNSWGirraweenNSWGreystanesNSWMays HillNSWPemulwuyNSWPendle HillNSWSouth WentworthvilleNSWWentworthvilleNSWWestmeadNSW Postcode 2145 State or territory New South Wales (NSW) Localities 9 Council area Parramatta; Cumberland; Mainly Cumberland, partly Parramatta Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2144 · Postcode 2146