Home Postcode finder NSW Mount Collins Mount Collins postcode NSW Mount Collins is a locality in New South Wales covered by postcode 2794. Postcode 2794 State or territory New South Wales (NSW) Region NSW Country West Add a free Mount Collins business listing Be the first listing in Mount Collins Common questionsWhat is the postcode for Mount Collins?Mount Collins, NSW has the postcode 2794.What state is Mount Collins in?Mount Collins is in New South Wales (NSW).Does postcode 2794 cover more than one suburb?Yes. Postcode 2794 covers 5 localities, so the postcode alone does not identify Mount Collins. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.