Home Postcode finder NSW Holgate Holgate postcode NSW Holgate is a locality in New South Wales covered by postcode 2250. Postcode 2250 State or territory New South Wales (NSW) Region Gosford Add a free Holgate business listing More business listings in Holgate Businesses in HolgateHolgate Public SchoolWattle Tree Rd · 02 43677444 Common questionsWhat is the postcode for Holgate?Holgate, NSW has the postcode 2250.What state is Holgate in?Holgate is in New South Wales (NSW).Does postcode 2250 cover more than one suburb?Yes. Postcode 2250 covers 34 localities, so the postcode alone does not identify Holgate. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.