Home Postcode finder QLD Mount Isa Mount Isa postcode QLD Mount Isa is a locality in Queensland covered by postcode 4825. Postcode 4825 State or territory Queensland (QLD) Region North QLD Add a free Mount Isa business listing More business listings in Mount Isa Businesses in Mount Isa1300 Meteor Rentals - Mt Isa3 Killara Crescent Kalkadoon · (07) 4744 0500Barkly Highway State School17 Bougainville St · 07 47432513Earth Inspired CreationsMount Isa QLD 4825, Australia · 0488994813 Common questionsWhat is the postcode for Mount Isa?Mount Isa, QLD has the postcode 4825.What state is Mount Isa in?Mount Isa 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. 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.