Home Postcode finder WA Manypeaks Manypeaks postcode WA Manypeaks is a locality in Western Australia covered by postcode 6328. Postcode 6328 State or territory Western Australia (WA) Region Wa Subs 2 Gsr Add a free Manypeaks business listing More business listings in Manypeaks Businesses in ManypeaksMt Manypeaks Primary School43731 South Coast Hwy · 08 98461269 Common questionsWhat is the postcode for Manypeaks?Manypeaks, WA has the postcode 6328.What state is Manypeaks in?Manypeaks is in Western Australia (WA).Does postcode 6328 cover more than one suburb?Yes. Postcode 6328 covers 8 localities, so the postcode alone does not identify Manypeaks. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.