Home Postcode finder WA Muchea Muchea postcode WA Muchea is a locality in Western Australia covered by postcode 6501. Postcode 6501 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Muchea business listing Be the first listing in Muchea Common questionsWhat is the postcode for Muchea?Muchea, WA has the postcode 6501.What state is Muchea in?Muchea is in Western Australia (WA).Does postcode 6501 cover more than one suburb?No. Postcode 6501 covers Muchea only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.