hannans postcode wa Home ›› Postcode Finder ›› WA ›› Hannans Hannans local listingsThe suburb of Hannans is located in WA and has a postcode of 6430. Free hannans business listing! 1Hannans Primary SchoolNankiville Rd 08 90914148 View more business listings in hannans Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.