Home Postcode finder WA Ferndale Ferndale postcode WA Ferndale is a locality in Western Australia covered by postcode 6148. Postcode 6148 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Ferndale business listing More business listings in Ferndale Businesses in FerndaleBannister Creek Primary School12 Karri Way · 08 93509588Damla College40 Latham Rd · 08 93373105 Common questionsWhat is the postcode for Ferndale?Ferndale, WA has the postcode 6148.What state is Ferndale in?Ferndale is in Western Australia (WA).Does postcode 6148 cover more than one suburb?Yes. Postcode 6148 covers 4 localities, so the postcode alone does not identify Ferndale. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.