Home Postcode finder NSW Narran Lake Narran Lake postcode NSW Narran Lake is a locality in New South Wales covered by postcode 2839. Postcode 2839 State or territory New South Wales (NSW) Region NSW Country West Add a free Narran Lake business listing Be the first listing in Narran Lake Common questionsWhat is the postcode for Narran Lake?Narran Lake, NSW has the postcode 2839.What state is Narran Lake in?Narran Lake is in New South Wales (NSW).Does postcode 2839 cover more than one suburb?Yes. Postcode 2839 covers 7 localities, so the postcode alone does not identify Narran Lake. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.