Home Postcode finder QLD Commissioners Flat Commissioners Flat postcode QLD Commissioners Flat is a locality in Queensland covered by postcode 4514. Postcode 4514 State or territory Queensland (QLD) Region Moreton Add a free Commissioners Flat business listing Be the first listing in Commissioners Flat Common questionsWhat is the postcode for Commissioners Flat?Commissioners Flat, QLD has the postcode 4514.What state is Commissioners Flat in?Commissioners Flat is in Queensland (QLD).Does postcode 4514 cover more than one suburb?Yes. Postcode 4514 covers 12 localities, so the postcode alone does not identify Commissioners Flat. Browse other postcodes in Queensland, or widen the search to every Australian postcode.