Home Postcode finder NSW Lambton Lambton postcode NSW Lambton is a locality in New South Wales covered by postcode 2299. Postcode 2299 State or territory New South Wales (NSW) Region Hunter Add a free Lambton business listing More business listings in Lambton Businesses in LambtonAir Conditioning Industries7 Norah Road · 0249083700Holistic Health Hypnotherapy5/115 Elder St, Lambton NSW 2299, Australia · 0407 204 757Lambton High SchoolCnr Womboin & Young Rds · 02 49523977 Common questionsWhat is the postcode for Lambton?Lambton, NSW has the postcode 2299.What state is Lambton in?Lambton is in New South Wales (NSW).Does postcode 2299 cover more than one suburb?Yes. Postcode 2299 covers 3 localities, so the postcode alone does not identify Lambton. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.