Home Postcode finder WA Bruce Rock Bruce Rock postcode WA Bruce Rock is a locality in Western Australia covered by postcode 6418. Postcode 6418 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Add a free Bruce Rock business listing More business listings in Bruce Rock Businesses in Bruce RockBruce Rock District High School37 Dunstall St · 08 90611237 Common questionsWhat is the postcode for Bruce Rock?Bruce Rock, WA has the postcode 6418.What state is Bruce Rock in?Bruce Rock is in Western Australia (WA).Does postcode 6418 cover more than one suburb?No. Postcode 6418 covers Bruce Rock only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.