Home Postcode finder NSW New Valley New Valley postcode NSW New Valley is a locality in New South Wales covered by postcode 2365. Postcode 2365 State or territory New South Wales (NSW) Region NSW North Coast Add a free New Valley business listing Be the first listing in New Valley Common questionsWhat is the postcode for New Valley?New Valley, NSW has the postcode 2365.What state is New Valley in?New Valley is in New South Wales (NSW).Does postcode 2365 cover more than one suburb?Yes. Postcode 2365 covers 26 localities, so the postcode alone does not identify New Valley. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.