Home Postcodes by state NSW 2019 Postcode 2019 2019 is the postcode for 2 localities in NSW: Banksmeadow and Botany. Localities with postcode 2019BanksmeadowNSWBotanyNSW Postcode 2019 State or territory New South Wales (NSW) Localities 2 Council area Bayside Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2018 · Postcode 2020