Home Postcode finder NSW Glen Ayr Glen Ayr postcode NSW Glen Ayr 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 Glen Ayr business listing Be the first listing in Glen Ayr Common questionsWhat is the postcode for Glen Ayr?Glen Ayr, NSW has the postcode 2850.What state is Glen Ayr in?Glen Ayr 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 Glen Ayr. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.