willoughby postcode nswdl Home ›› Postcode Finder ›› NSWDL ›› Willoughby Willoughby local listingsThe suburb of Willoughby is located in NSW and has a postcode of 2068. Free willoughby business listing! 1Yoganic Studio1 551 Willoughby Rd 02808414862Willoughby Girls High SchoolMowbray Rd 02 995841413St Thomas Primary School2 Horsley Ave 02 99587308 View more business listings in willoughby Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.