Home Postcodes by state VIC 3429 Postcode 3429 3429 is the postcode for 2 localities in VIC: Sunbury and Wildwood. Localities with postcode 3429SunburyVICWildwoodVIC Postcode 3429 State or territory Victoria (VIC) Localities 2 Council area Hume Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3428 · Postcode 3430