Home Postcode finder NSW Baulkham Hills Baulkham Hills postcode NSW Baulkham Hills is a locality in New South Wales covered by postcode 2153. Postcode 2153 State or territory New South Wales (NSW) Region Seven Hills Add a free Baulkham Hills business listing More business listings in Baulkham Hills Businesses in Baulkham Hills DINA Lawyers5 4 Columbia Way · 61288964340 DINA Lawyers5 4 Columbia Way · 61288964340 DINA Lawyers5 4 Columbia Way · 61288964340 Common questionsWhat is the postcode for Baulkham Hills?Baulkham Hills, NSW has the postcode 2153.What state is Baulkham Hills in?Baulkham Hills is in New South Wales (NSW).Does postcode 2153 cover more than one suburb?Yes. Postcode 2153 covers 3 localities, so the postcode alone does not identify Baulkham Hills. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.