Home Postcode finder NSW Lake George Lake George postcode NSW Lake George is a locality in New South Wales covered by postcode 2581. Postcode 2581 State or territory New South Wales (NSW) Region Canberra Add a free Lake George business listing Be the first listing in Lake George Common questionsWhat is the postcode for Lake George?Lake George, NSW has the postcode 2581.What state is Lake George in?Lake George is in New South Wales (NSW).Does postcode 2581 cover more than one suburb?Yes. Postcode 2581 covers 17 localities, so the postcode alone does not identify Lake George. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.