Home Postcode finder NSW Mccullys Gap Mccullys Gap postcode NSW Mccullys Gap is a locality in New South Wales covered by postcode 2333. Postcode 2333 State or territory New South Wales (NSW) Region Hunter Add a free Mccullys Gap business listing Be the first listing in Mccullys Gap Common questionsWhat is the postcode for Mccullys Gap?Mccullys Gap, NSW has the postcode 2333.What state is Mccullys Gap in?Mccullys Gap is in New South Wales (NSW).Does postcode 2333 cover more than one suburb?Yes. Postcode 2333 covers 14 localities, so the postcode alone does not identify Mccullys Gap. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.