Home Postcode finder NSW Glenworth Valley Glenworth Valley postcode NSW Glenworth Valley is a locality in New South Wales covered by postcode 2250. Postcode 2250 State or territory New South Wales (NSW) Region Gosford Add a free Glenworth Valley business listing Be the first listing in Glenworth Valley Common questionsWhat is the postcode for Glenworth Valley?Glenworth Valley, NSW has the postcode 2250.What state is Glenworth Valley in?Glenworth Valley is in New South Wales (NSW).Does postcode 2250 cover more than one suburb?Yes. Postcode 2250 covers 34 localities, so the postcode alone does not identify Glenworth Valley. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.