Home Postcodes by state VIC 3438 Postcode 3438 3438 is the postcode for New Gisborne, VIC. Localities with postcode 3438New GisborneVIC Postcode 3438 State or territory Victoria (VIC) Localities 1 Council area Macedon Ranges Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3437 · Postcode 3440