Home Postcode finder WA Parkfield Parkfield postcode WA Parkfield is a locality in Western Australia covered by postcode 6233. Postcode 6233 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free Parkfield business listing Be the first listing in Parkfield Common questionsWhat is the postcode for Parkfield?Parkfield, WA has the postcode 6233.What state is Parkfield in?Parkfield is in Western Australia (WA).Does postcode 6233 cover more than one suburb?Yes. Postcode 6233 covers 5 localities, so the postcode alone does not identify Parkfield. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.