Home Postcode finder QLD Upper Stone Upper Stone postcode QLD Upper Stone is a locality in Queensland covered by postcode 4850. Postcode 4850 State or territory Queensland (QLD) Region North QLD Add a free Upper Stone business listing Be the first listing in Upper Stone Common questionsWhat is the postcode for Upper Stone?Upper Stone, QLD has the postcode 4850.What state is Upper Stone in?Upper Stone is in Queensland (QLD).Does postcode 4850 cover more than one suburb?Yes. Postcode 4850 covers 34 localities, so the postcode alone does not identify Upper Stone. Browse other postcodes in Queensland, or widen the search to every Australian postcode.