Home Postcode finder NSW Lake Haven Lake Haven postcode NSW Lake Haven is a locality in New South Wales covered by postcode 2263. Postcode 2263 State or territory New South Wales (NSW) Region Gosford Add a free Lake Haven business listing More business listings in Lake Haven Businesses in Lake HavenBowtie Joinery9 Kylie Close · 0243921956Classy LifeLake Haven NSW, Australia · 0469153400Kids Haven Preschool & Long Day Care80 Goobarabah Ave Common questionsWhat is the postcode for Lake Haven?Lake Haven, NSW has the postcode 2263.What state is Lake Haven in?Lake Haven is in New South Wales (NSW).Does postcode 2263 cover more than one suburb?Yes. Postcode 2263 covers 7 localities, so the postcode alone does not identify Lake Haven. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.