Home Postcode finder NSW Ullamalla Ullamalla postcode NSW Ullamalla is a locality in New South Wales covered by postcode 2850. Postcode 2850 State or territory New South Wales (NSW) Region NSW Country West Add a free Ullamalla business listing Be the first listing in Ullamalla Common questionsWhat is the postcode for Ullamalla?Ullamalla, NSW has the postcode 2850.What state is Ullamalla in?Ullamalla is in New South Wales (NSW).Does postcode 2850 cover more than one suburb?Yes. Postcode 2850 covers 77 localities, so the postcode alone does not identify Ullamalla. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.