Home Postcode finder QLD Kirwan Kirwan postcode QLD Kirwan is a locality in Queensland covered by postcode 4817. Postcode 4817 State or territory Queensland (QLD) Region North QLD Add a free Kirwan business listing More business listings in Kirwan Businesses in Kirwan Wallace Bishop - Townsville WillowsCnr Thuringowa Dr Hervey Range Rd · 07 4444 5754Kirwan State High SchoolHudson St · 07 47738111Kirwan State School21 Burnda St · 07 47731266 Common questionsWhat is the postcode for Kirwan?Kirwan, QLD has the postcode 4817.What state is Kirwan in?Kirwan is in Queensland (QLD).Does postcode 4817 cover more than one suburb?Yes. Postcode 4817 covers 6 localities, so the postcode alone does not identify Kirwan. Browse other postcodes in Queensland, or widen the search to every Australian postcode.