Home Postcodes by state VIC 3088 Postcode 3088 3088 is the postcode for 3 localities in VIC: Briar Hill, Greensborough and St Helena. Localities with postcode 3088Briar HillVICGreensboroughVICSt HelenaVIC Postcode 3088 State or territory Victoria (VIC) Localities 3 Council area Banyule; Mainly Banyule, partly Nillumbik Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3087 · Postcode 3089