ulong postcode nswdl Home ›› Postcode Finder ›› NSWDL ›› Ulong Ulong local listingsThe suburb of Ulong is located in NSW and has a postcode of 2450. Free ulong business listing! 1Ulong Public School20-22 Hutchinson St 02 66545242 View more business listings in ulong Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.