Home Postcode finder NSWRV Yagon Yagon postcode NSWRV Yagon is a locality in New South Wales covered by postcode 2423. Postcode 2423 State or territory New South Wales (NSWRV) Region Hunter Add a free Yagon business listing Be the first listing in Yagon Common questionsWhat is the postcode for Yagon?Yagon, NSWRV has the postcode 2423.What state is Yagon in?Yagon is in New South Wales (NSWRV).Does postcode 2423 cover more than one suburb?Yes. Postcode 2423 covers 20 localities, so the postcode alone does not identify Yagon. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.