Home Postcode finder WA Brookdale Brookdale postcode WA Brookdale is a locality in Western Australia covered by postcode 6112. Postcode 6112 State or territory Western Australia (WA) Region North West Suburbs Add a free Brookdale business listing More business listings in Brookdale Businesses in BrookdaleBrookdale Adventist School10 Ninth Rd · 08 93996776Budget Alarms18 Smailes Elbow · 6186102282Gwynne Park Primary School11 Tijuana Rd · 08 93994200 Common questionsWhat is the postcode for Brookdale?Brookdale, WA has the postcode 6112.What state is Brookdale in?Brookdale is in Western Australia (WA).Does postcode 6112 cover more than one suburb?Yes. Postcode 6112 covers 12 localities, so the postcode alone does not identify Brookdale. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.