Home Postcodes by state VIC 3873 Postcode 3873 3873 is the postcode for Gormandale, VIC. Localities with postcode 3873GormandaleVIC Postcode 3873 State or territory Victoria (VIC) Localities 1 Council area Wellington Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3871 · Postcode 3874