new-lambton-heights postcode nsw Home ›› Postcode Finder ›› NSW ›› New-Lambton-Heights New Lambton Heights local listingsThe suburb of New Lambton Heights is located in NSW and has a postcode of 2305. Free new lambton heights business listing! Get the first free listing in new lambton heights! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.