Home Postcode finder NSW Hampton Hampton postcode NSW Hampton is a locality in New South Wales covered by postcode 2790. Postcode 2790 State or territory New South Wales (NSW) Region NSW Country West Add a free Hampton business listing More business listings in Hampton Businesses in HamptonHampton Public SchoolLot 1 Jenolan Caves Rd · 02 63593231 Common questionsWhat is the postcode for Hampton?Hampton, NSW has the postcode 2790.What state is Hampton in?Hampton is in New South Wales (NSW).Does postcode 2790 cover more than one suburb?Yes. Postcode 2790 covers 40 localities, so the postcode alone does not identify Hampton. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.