Home Postcode finder WA Cosmo Newbery Cosmo Newbery postcode WA Cosmo Newbery is a locality in Western Australia covered by postcode 6440. Postcode 6440 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Add a free Cosmo Newbery business listing More business listings in Cosmo Newbery Businesses in Cosmo NewberyCosmo Newbery Remote Community School08 90375943 Common questionsWhat is the postcode for Cosmo Newbery?Cosmo Newbery, WA has the postcode 6440.What state is Cosmo Newbery in?Cosmo Newbery is in Western Australia (WA).Does postcode 6440 cover more than one suburb?Yes. Postcode 6440 covers 6 localities, so the postcode alone does not identify Cosmo Newbery. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.