Home Postcode finder QLD Dinmore Dinmore postcode QLD Dinmore is a locality in Queensland covered by postcode 4303. Postcode 4303 State or territory Queensland (QLD) Region Western Suburbs Add a free Dinmore business listing Be the first listing in Dinmore Common questionsWhat is the postcode for Dinmore?Dinmore, QLD has the postcode 4303.What state is Dinmore in?Dinmore is in Queensland (QLD).Does postcode 4303 cover more than one suburb?Yes. Postcode 4303 covers 3 localities, so the postcode alone does not identify Dinmore. Browse other postcodes in Queensland, or widen the search to every Australian postcode.