Home Postcode finder QLD Mount Isa East Mount Isa East postcode QLD Mount Isa East is a locality in Queensland covered by postcode 4825. Postcode 4825 State or territory Queensland (QLD) Region North QLD Add a free Mount Isa East business listing Be the first listing in Mount Isa East Common questionsWhat is the postcode for Mount Isa East?Mount Isa East, QLD has the postcode 4825.What state is Mount Isa East in?Mount Isa East is in Queensland (QLD).Does postcode 4825 cover more than one suburb?Yes. Postcode 4825 covers 36 localities, so the postcode alone does not identify Mount Isa East. It also appears in 2 states or territories, so it does not identify a state either. Browse other postcodes in Queensland, or widen the search to every Australian postcode.