Home Postcodes by state VIC 3430 Postcode 3430 3430 is the postcode for Clarkefield, VIC. Localities with postcode 3430ClarkefieldVIC Postcode 3430 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 3429 · Postcode 3431