brookton postcode wa Home ›› Postcode Finder ›› WA ›› Brookton Brookton local listingsThe suburb of Brookton is located in WA and has a postcode of 6306. Free brookton business listing! 1Brookton District High SchoolTiller St 08 96421011 View more business listings in brookton Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.