Home Postcode finder NSW Mossgiel Mossgiel postcode NSW Mossgiel is a locality in New South Wales covered by postcode 2878. Postcode 2878 State or territory New South Wales (NSW) Region NSW Country West Add a free Mossgiel business listing Be the first listing in Mossgiel Common questionsWhat is the postcode for Mossgiel?Mossgiel, NSW has the postcode 2878.What state is Mossgiel in?Mossgiel is in New South Wales (NSW).Does postcode 2878 cover more than one suburb?Yes. Postcode 2878 covers 2 localities, so the postcode alone does not identify Mossgiel. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.