Home Postcode finder QLD Sun Valley Sun Valley postcode QLD Sun Valley is a locality in Queensland covered by postcode 4680. Postcode 4680 State or territory Queensland (QLD) Region Central QLD Add a free Sun Valley business listing Be the first listing in Sun Valley Common questionsWhat is the postcode for Sun Valley?Sun Valley, QLD has the postcode 4680.What state is Sun Valley in?Sun Valley is in Queensland (QLD).Does postcode 4680 cover more than one suburb?Yes. Postcode 4680 covers 41 localities, so the postcode alone does not identify Sun Valley. Browse other postcodes in Queensland, or widen the search to every Australian postcode.