Home Postcode finder NSW Menai Menai postcode NSW Menai is a locality in New South Wales covered by postcode 2234. Postcode 2234 State or territory New South Wales (NSW) Region Illawarra Add a free Menai business listing More business listings in Menai Businesses in MenaiAquinas CollegeAnzac Rd · 02 95430188Builders Profilemenai · 0412 538 682Classic Smiles DentalSuite F 101 Menai Central · (02) 9543 6666 Common questionsWhat is the postcode for Menai?Menai, NSW has the postcode 2234.What state is Menai in?Menai is in New South Wales (NSW).Does postcode 2234 cover more than one suburb?Yes. Postcode 2234 covers 7 localities, so the postcode alone does not identify Menai. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.