gunnedah postcode nswrv Home ›› Postcode Finder ›› NSWRV ›› Gunnedah Gunnedah local listingsThe suburb of Gunnedah is located in NSW and has a postcode of 2380. Free gunnedah business listing! 1Gunnedah High School2-34 Marquis St 02 674201552St Mary's College151 Bloomfield St 02 674221243GS Kidd Memorial Special School121 Stock Rd 02 67421501 View more business listings in gunnedah Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.