Home Postcode finder WA Hyden Hyden postcode WA Hyden is a locality in Western Australia covered by postcode 6359. Postcode 6359 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free Hyden business listing More business listings in Hyden Businesses in HydenHyden Primary School36 Naughton St · 08 98805053 Common questionsWhat is the postcode for Hyden?Hyden, WA has the postcode 6359.What state is Hyden in?Hyden is in Western Australia (WA).Does postcode 6359 cover more than one suburb?Yes. Postcode 6359 covers 2 localities, so the postcode alone does not identify Hyden. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.