Home Postcode finder QLD Darlington Darlington postcode QLD Darlington is a locality in Queensland covered by postcode 4285. Postcode 4285 State or territory Queensland (QLD) Region Heathwood Add a free Darlington business listing More business listings in Darlington Businesses in DarlingtonDarlington State SchoolKerry Rd · 07 55448137Worendo Cottages And Wild Lime Cooking School97 Cedar Glen Rd · 0422587567 Common questionsWhat is the postcode for Darlington?Darlington, QLD has the postcode 4285.What state is Darlington in?Darlington is in Queensland (QLD).Does postcode 4285 cover more than one suburb?Yes. Postcode 4285 covers 33 localities, so the postcode alone does not identify Darlington. Browse other postcodes in Queensland, or widen the search to every Australian postcode.