Home Postcode finder NSW Upper Bylong Upper Bylong postcode NSW Upper Bylong is a locality in New South Wales covered by postcode 2849. Postcode 2849 State or territory New South Wales (NSW) Region NSW Country West Add a free Upper Bylong business listing Be the first listing in Upper Bylong Common questionsWhat is the postcode for Upper Bylong?Upper Bylong, NSW has the postcode 2849.What state is Upper Bylong in?Upper Bylong is in New South Wales (NSW).Does postcode 2849 cover more than one suburb?Yes. Postcode 2849 covers 29 localities, so the postcode alone does not identify Upper Bylong. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.