Home Postcode finder NSWDL Forest Glen Forest Glen postcode NSWDL Forest Glen is a locality in New South Wales covered by postcode 2157. Postcode 2157 State or territory New South Wales (NSWDL) Region Seven Hills Add a free Forest Glen business listing Be the first listing in Forest Glen Common questionsWhat is the postcode for Forest Glen?Forest Glen, NSWDL has the postcode 2157.What state is Forest Glen in?Forest Glen is in New South Wales (NSWDL).Does postcode 2157 cover more than one suburb?Yes. Postcode 2157 covers 3 localities, so the postcode alone does not identify Forest Glen. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.