Home Postcode finder NSW Owens Gap Owens Gap postcode NSW Owens Gap is a locality in New South Wales covered by postcode 2337. Postcode 2337 State or territory New South Wales (NSW) Region Hunter Add a free Owens Gap business listing Be the first listing in Owens Gap Common questionsWhat is the postcode for Owens Gap?Owens Gap, NSW has the postcode 2337.What state is Owens Gap in?Owens Gap is in New South Wales (NSW).Does postcode 2337 cover more than one suburb?Yes. Postcode 2337 covers 25 localities, so the postcode alone does not identify Owens Gap. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.