Home Postcode finder WA Mogumber Mogumber postcode WA Mogumber is a locality in Western Australia covered by postcode 6506. Postcode 6506 State or territory Western Australia (WA) Region Wa Subs 4 Coast Add a free Mogumber business listing Be the first listing in Mogumber Common questionsWhat is the postcode for Mogumber?Mogumber, WA has the postcode 6506.What state is Mogumber in?Mogumber is in Western Australia (WA).Does postcode 6506 cover more than one suburb?No. Postcode 6506 covers Mogumber only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.