Home Postcode finder WA Manmanning Manmanning postcode WA Manmanning is a locality in Western Australia covered by postcode 6465. Postcode 6465 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Add a free Manmanning business listing Be the first listing in Manmanning Common questionsWhat is the postcode for Manmanning?Manmanning, WA has the postcode 6465.What state is Manmanning in?Manmanning is in Western Australia (WA).Does postcode 6465 cover more than one suburb?No. Postcode 6465 covers Manmanning only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.