cranbrook postcode wa Home ›› Postcode Finder ›› WA ›› Cranbrook Cranbrook local listingsThe suburb of Cranbrook is located in WA and has a postcode of 6321. Free cranbrook business listing! 1Cranbrook Primary SchoolGrenfell St 08 98261028 View more business listings in cranbrook Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.