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