Home Postcodes by state VIC 3540 Postcode 3540 3540 is the postcode for 3 localities in VIC: Cannie, Oakvale and Quambatook. Localities with postcode 3540CannieVICOakvaleVICQuambatookVIC Postcode 3540 State or territory Victoria (VIC) Localities 3 Council area Gannawarra Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3537 · Postcode 3542