Home Postcode finder QLD Mckinlay Mckinlay postcode QLD Mckinlay is a locality in Queensland covered by postcode 4823. Postcode 4823 State or territory Queensland (QLD) Region North QLD Add a free Mckinlay business listing Be the first listing in Mckinlay Common questionsWhat is the postcode for Mckinlay?Mckinlay, QLD has the postcode 4823.What state is Mckinlay in?Mckinlay is in Queensland (QLD).Does postcode 4823 cover more than one suburb?Yes. Postcode 4823 covers 7 localities, so the postcode alone does not identify Mckinlay. Browse other postcodes in Queensland, or widen the search to every Australian postcode.