wingham postcode nswst Home ›› Postcode Finder ›› NSWST ›› Wingham Wingham local listingsThe suburb of Wingham is located in NSW and has a postcode of 2429. Free wingham business listing! 1Wingham High School9 Rowley St 02 655354882St Joseph's SchoolChurch Crescent 02 655347743Wingham Brush Public SchoolIsabella St 02 65534443 View more business listings in wingham Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.