Home Postcodes by state VIC 3786 Postcode 3786 3786 is the postcode for Ferny Creek, VIC. Localities with postcode 3786Ferny CreekVIC Postcode 3786 State or territory Victoria (VIC) Localities 1 Council area Yarra Ranges Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3785 · Postcode 3787