Home Postcodes by state WA 6164 Postcode 6164 6164 is the postcode for 10 localities in WA: Atwell, Aubin Grove, Banjup, Beeliar, Cockburn Central, Hammond Park and 4 more. Localities with postcode 6164AtwellWAAubin GroveWABanjupWABeeliarWACockburn CentralWAHammond ParkWAJandakotWASouth LakeWASuccessWAYangebupWA Postcode 6164 State or territory Western Australia (WA) Localities 10 Council area Cockburn Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6163 · Postcode 6165