Home Postcode finder WA White Gum Valley White Gum Valley postcode WA White Gum Valley is a locality in Western Australia covered by postcode 6162. Postcode 6162 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free White Gum Valley business listing More business listings in White Gum Valley Businesses in White Gum ValleyWhite Gum Valley Primary School29 Hope St · 08 93352655 Common questionsWhat is the postcode for White Gum Valley?White Gum Valley, WA has the postcode 6162.What state is White Gum Valley in?White Gum Valley is in Western Australia (WA).Does postcode 6162 cover more than one suburb?Yes. Postcode 6162 covers 3 localities, so the postcode alone does not identify White Gum Valley. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.