Home Postcode finder NSW Chatham Valley Chatham Valley postcode NSW Chatham Valley is a locality in New South Wales covered by postcode 2787. Postcode 2787 State or territory New South Wales (NSW) Region NSW Country West Add a free Chatham Valley business listing Be the first listing in Chatham Valley Common questionsWhat is the postcode for Chatham Valley?Chatham Valley, NSW has the postcode 2787.What state is Chatham Valley in?Chatham Valley is in New South Wales (NSW).Does postcode 2787 cover more than one suburb?Yes. Postcode 2787 covers 19 localities, so the postcode alone does not identify Chatham Valley. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.