Home Postcodes by state WA 6386 Postcode 6386 6386 is the postcode for Shackleton, WA. Localities with postcode 6386ShackletonWA Postcode 6386 State or territory Western Australia (WA) Localities 1 Council area Bruce Rock Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6385 · Postcode 6390