Home Postcodes by state WA 6155 Postcode 6155 6155 is the postcode for 4 localities in WA: Canning Vale, Canning Vale East, Canning Vale South and Willetton. Localities with postcode 6155Canning ValeWACanning Vale EastWACanning Vale SouthWAWillettonWA Postcode 6155 State or territory Western Australia (WA) Localities 4 Council area Mainly Gosnells, partly Canning; Canning Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6154 · Postcode 6156