Home Postcode finder WA Grimwade Grimwade postcode WA Grimwade is a locality in Western Australia covered by postcode 6253. Postcode 6253 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free Grimwade business listing Be the first listing in Grimwade Common questionsWhat is the postcode for Grimwade?Grimwade, WA has the postcode 6253.What state is Grimwade in?Grimwade is in Western Australia (WA).Does postcode 6253 cover more than one suburb?Yes. Postcode 6253 covers 3 localities, so the postcode alone does not identify Grimwade. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.