Home Postcode finder WA Brunswick Brunswick postcode WA Brunswick is a locality in Western Australia covered by postcode 6224. Postcode 6224 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free Brunswick business listing More business listings in Brunswick Businesses in BrunswickSt Michael's Primary School13-15 Sommers Rd · 08 97261317 Common questionsWhat is the postcode for Brunswick?Brunswick, WA has the postcode 6224.What state is Brunswick in?Brunswick is in Western Australia (WA).Does postcode 6224 cover more than one suburb?Yes. Postcode 6224 covers 2 localities, so the postcode alone does not identify Brunswick. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.