Home Postcode finder NSW Cooks Myalls Cooks Myalls postcode NSW Cooks Myalls is a locality in New South Wales covered by postcode 2870. Postcode 2870 State or territory New South Wales (NSW) Region NSW Country West Add a free Cooks Myalls business listing Be the first listing in Cooks Myalls Common questionsWhat is the postcode for Cooks Myalls?Cooks Myalls, NSW has the postcode 2870.What state is Cooks Myalls in?Cooks Myalls is in New South Wales (NSW).Does postcode 2870 cover more than one suburb?Yes. Postcode 2870 covers 8 localities, so the postcode alone does not identify Cooks Myalls. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.