Home Postcode finder NSW Marlee Marlee postcode NSW Marlee is a locality in New South Wales covered by postcode 2429. Postcode 2429 State or territory New South Wales (NSW) Region Hunter Add a free Marlee business listing Be the first listing in Marlee Common questionsWhat is the postcode for Marlee?Marlee, NSW has the postcode 2429.What state is Marlee in?Marlee is in New South Wales (NSW).Does postcode 2429 cover more than one suburb?Yes. Postcode 2429 covers 32 localities, so the postcode alone does not identify Marlee. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.