Home Postcode finder NSWDL State Mine Gully State Mine Gully postcode NSWDL State Mine Gully is a locality in New South Wales covered by postcode 2790. Postcode 2790 State or territory New South Wales (NSWDL) Region NSW Country West Add a free State Mine Gully business listing Be the first listing in State Mine Gully Common questionsWhat is the postcode for State Mine Gully?State Mine Gully, NSWDL has the postcode 2790.What state is State Mine Gully in?State Mine Gully is in New South Wales (NSWDL).Does postcode 2790 cover more than one suburb?Yes. Postcode 2790 covers 40 localities, so the postcode alone does not identify State Mine Gully. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.