Home Postcode finder WA Jennapullin Jennapullin postcode WA Jennapullin is a locality in Western Australia covered by postcode 6401. Postcode 6401 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Add a free Jennapullin business listing Be the first listing in Jennapullin Common questionsWhat is the postcode for Jennapullin?Jennapullin, WA has the postcode 6401.What state is Jennapullin in?Jennapullin is in Western Australia (WA).Does postcode 6401 cover more than one suburb?Yes. Postcode 6401 covers 18 localities, so the postcode alone does not identify Jennapullin. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.