Home Postcode finder NSW Totnes Valley Totnes Valley postcode NSW Totnes Valley is a locality in New South Wales covered by postcode 2850. Postcode 2850 State or territory New South Wales (NSW) Region NSW Country West Add a free Totnes Valley business listing Be the first listing in Totnes Valley Common questionsWhat is the postcode for Totnes Valley?Totnes Valley, NSW has the postcode 2850.What state is Totnes Valley in?Totnes Valley is in New South Wales (NSW).Does postcode 2850 cover more than one suburb?Yes. Postcode 2850 covers 77 localities, so the postcode alone does not identify Totnes Valley. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.