Home Postcode finder WA Forrestania Forrestania postcode WA Forrestania is a locality in Western Australia covered by postcode 6359. Postcode 6359 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free Forrestania business listing Be the first listing in Forrestania Common questionsWhat is the postcode for Forrestania?Forrestania, WA has the postcode 6359.What state is Forrestania in?Forrestania is in Western Australia (WA).Does postcode 6359 cover more than one suburb?Yes. Postcode 6359 covers 2 localities, so the postcode alone does not identify Forrestania. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.