Home Postcode finder WA Dingup Dingup postcode WA Dingup is a locality in Western Australia covered by postcode 6258. Postcode 6258 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free Dingup business listing Be the first listing in Dingup Common questionsWhat is the postcode for Dingup?Dingup, WA has the postcode 6258.What state is Dingup in?Dingup is in Western Australia (WA).Does postcode 6258 cover more than one suburb?Yes. Postcode 6258 covers 22 localities, so the postcode alone does not identify Dingup. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.