flint postcode wa Home ›› Postcode Finder ›› WA ›› Flint Flint local listingsThe suburb of Flint is located in WA and has a postcode of 6302. Free flint business listing! 1AVG Tech Support5 Maritime Avenue 1800764884 View more business listings in flint Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.