Home Postcode finder NSW Megalong Megalong postcode NSW Megalong is a locality in New South Wales covered by postcode 2785. Postcode 2785 State or territory New South Wales (NSW) Region Nepean Add a free Megalong business listing More business listings in Megalong Businesses in MegalongMegalong Public SchoolMegalong Valley · 02 47879159 Common questionsWhat is the postcode for Megalong?Megalong, NSW has the postcode 2785.What state is Megalong in?Megalong is in New South Wales (NSW).Does postcode 2785 cover more than one suburb?Yes. Postcode 2785 covers 2 localities, so the postcode alone does not identify Megalong. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.