Home Postcode finder NSW Mayvale Mayvale postcode NSW Mayvale is a locality in New South Wales covered by postcode 2347. Postcode 2347 State or territory New South Wales (NSW) Region NSW North Coast Add a free Mayvale business listing Be the first listing in Mayvale Common questionsWhat is the postcode for Mayvale?Mayvale, NSW has the postcode 2347.What state is Mayvale in?Mayvale is in New South Wales (NSW).Does postcode 2347 cover more than one suburb?Yes. Postcode 2347 covers 13 localities, so the postcode alone does not identify Mayvale. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.