Home Postcode finder NSW Helensburgh Helensburgh postcode NSW Helensburgh is a locality in New South Wales covered by postcode 2508. Postcode 2508 State or territory New South Wales (NSW) Region Illawarra Add a free Helensburgh business listing More business listings in Helensburgh Businesses in HelensburghBrushed by Brooke LouiseHelensburgh New South Wales 2508, Australia · 0434450655Gelato Man7B Walker Street, Helensburgh NSW, Australia · 0404848066Helensburgh Public School1 Lukin St · 02 42941332 Common questionsWhat is the postcode for Helensburgh?Helensburgh, NSW has the postcode 2508.What state is Helensburgh in?Helensburgh is in New South Wales (NSW).Does postcode 2508 cover more than one suburb?Yes. Postcode 2508 covers 9 localities, so the postcode alone does not identify Helensburgh. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.