Home Postcode finder WA Winnejup Winnejup postcode WA Winnejup is a locality in Western Australia covered by postcode 6255. Postcode 6255 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free Winnejup business listing Be the first listing in Winnejup Common questionsWhat is the postcode for Winnejup?Winnejup, WA has the postcode 6255.What state is Winnejup in?Winnejup is in Western Australia (WA).Does postcode 6255 cover more than one suburb?Yes. Postcode 6255 covers 7 localities, so the postcode alone does not identify Winnejup. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.