Home Postcode finder WA Forest Grove Forest Grove postcode WA Forest Grove is a locality in Western Australia covered by postcode 6286. Postcode 6286 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free Forest Grove business listing Be the first listing in Forest Grove Common questionsWhat is the postcode for Forest Grove?Forest Grove, WA has the postcode 6286.What state is Forest Grove in?Forest Grove is in Western Australia (WA).Does postcode 6286 cover more than one suburb?Yes. Postcode 6286 covers 4 localities, so the postcode alone does not identify Forest Grove. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.