Home Postcode finder WA Hannans Hannans postcode WA Hannans is a locality in Western Australia covered by postcode 6430. Postcode 6430 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Add a free Hannans business listing More business listings in Hannans Businesses in HannansHannans Primary SchoolNankiville Rd · 08 90914148 Common questionsWhat is the postcode for Hannans?Hannans, WA has the postcode 6430.What state is Hannans in?Hannans is in Western Australia (WA).Does postcode 6430 cover more than one suburb?Yes. Postcode 6430 covers 14 localities, so the postcode alone does not identify Hannans. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.