Home Postcode finder QLD One Mile One Mile postcode QLD One Mile is a locality in Queensland covered by postcode 4305. Postcode 4305 State or territory Queensland (QLD) Region Western Suburbs Add a free One Mile business listing Be the first listing in One Mile Common questionsWhat is the postcode for One Mile?One Mile, QLD has the postcode 4305.What state is One Mile in?One Mile is in Queensland (QLD).Does postcode 4305 cover more than one suburb?Yes. Postcode 4305 covers 23 localities, so the postcode alone does not identify One Mile. Browse other postcodes in Queensland, or widen the search to every Australian postcode.