Home Postcode finder NSWDL Singleton Heights Singleton Heights postcode NSWDL Singleton Heights is a locality in New South Wales covered by postcode 2330. Postcode 2330 State or territory New South Wales (NSWDL) Region Hunter Add a free Singleton Heights business listing More business listings in Singleton Heights Businesses in Singleton HeightsSingleton Heights Public SchoolDorseman Drive · 02 65731363 Common questionsWhat is the postcode for Singleton Heights?Singleton Heights, NSWDL has the postcode 2330.What state is Singleton Heights in?Singleton Heights is in New South Wales (NSWDL).Does postcode 2330 cover more than one suburb?Yes. Postcode 2330 covers 63 localities, so the postcode alone does not identify Singleton Heights. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.