Home Postcode finder WA Frankland River Frankland River postcode WA Frankland River is a locality in Western Australia covered by postcode 6396. Postcode 6396 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free Frankland River business listing Be the first listing in Frankland River Common questionsWhat is the postcode for Frankland River?Frankland River, WA has the postcode 6396.What state is Frankland River in?Frankland River is in Western Australia (WA).Does postcode 6396 cover more than one suburb?No. Postcode 6396 covers Frankland River only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.