Home Postcode finder NSW Running Stream Running Stream postcode NSW Running Stream 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 Running Stream business listing Be the first listing in Running Stream Common questionsWhat is the postcode for Running Stream?Running Stream, NSW has the postcode 2850.What state is Running Stream in?Running Stream 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 Running Stream. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.