Home Postcodes by state NSW 2319 Postcode 2319 2319 is the postcode for 4 localities in NSW: Lemon Tree Passage, Mallabula, Tanilba Bay and Tilligerry Creek. Localities with postcode 2319Lemon Tree PassageNSWMallabulaNSWTanilba BayNSWTilligerry CreekNSW Postcode 2319 State or territory New South Wales (NSW) Localities 4 Council area Port Stephens Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2318 · Postcode 2320