Home Postcodes by state VIC 3090 Postcode 3090 3090 is the postcode for Plenty, VIC. Localities with postcode 3090PlentyVIC Postcode 3090 State or territory Victoria (VIC) Localities 1 Council area Nillumbik Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3089 · Postcode 3091