Home Postcode finder NSWRV Birriwa Birriwa postcode NSWRV Birriwa is a locality in New South Wales covered by postcode 2844. Postcode 2844 State or territory New South Wales (NSWRV) Region NSW Country West Add a free Birriwa business listing Be the first listing in Birriwa Common questionsWhat is the postcode for Birriwa?Birriwa, NSWRV has the postcode 2844.What state is Birriwa in?Birriwa is in New South Wales (NSWRV).Does postcode 2844 cover more than one suburb?Yes. Postcode 2844 covers 3 localities, so the postcode alone does not identify Birriwa. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.