Home Postcodes by state VIC 3939 Postcode 3939 3939 is the postcode for 5 localities in VIC: Boneo, Cape Schanck, Fingal, Rosebud and Rosebud Plaza. Localities with postcode 3939BoneoVICCape SchanckVICFingalVICRosebudVICRosebud PlazaVIC Postcode 3939 State or territory Victoria (VIC) Localities 5 Council area Mornington Peninsula Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3938 · Postcode 3940