Home Postcode finder WA Nairibin Nairibin postcode WA Nairibin is a locality in Western Australia covered by postcode 6350. Postcode 6350 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free Nairibin business listing Be the first listing in Nairibin Common questionsWhat is the postcode for Nairibin?Nairibin, WA has the postcode 6350.What state is Nairibin in?Nairibin is in Western Australia (WA).Does postcode 6350 cover more than one suburb?Yes. Postcode 6350 covers 3 localities, so the postcode alone does not identify Nairibin. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.