Home Postcode finder QLD Mount Peter Mount Peter postcode QLD Mount Peter is a locality in Queensland covered by postcode 4869. Postcode 4869 State or territory Queensland (QLD) Region North QLD Add a free Mount Peter business listing Be the first listing in Mount Peter Common questionsWhat is the postcode for Mount Peter?Mount Peter, QLD has the postcode 4869.What state is Mount Peter in?Mount Peter is in Queensland (QLD).Does postcode 4869 cover more than one suburb?Yes. Postcode 4869 covers 4 localities, so the postcode alone does not identify Mount Peter. Browse other postcodes in Queensland, or widen the search to every Australian postcode.