Home Postcode finder NSW Mckellars Park Mckellars Park postcode NSW Mckellars Park is a locality in New South Wales covered by postcode 2790. Postcode 2790 State or territory New South Wales (NSW) Region NSW Country West Add a free Mckellars Park business listing Be the first listing in Mckellars Park Common questionsWhat is the postcode for Mckellars Park?Mckellars Park, NSW has the postcode 2790.What state is Mckellars Park in?Mckellars Park is in New South Wales (NSW).Does postcode 2790 cover more than one suburb?Yes. Postcode 2790 covers 40 localities, so the postcode alone does not identify Mckellars Park. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.