wollongong postcode nsw Home ›› Postcode Finder ›› NSW ›› Wollongong Wollongong local listingsThe suburb of Wollongong is located in NSW and has a postcode of 2500. Free wollongong business listing! 1Smiths Hill High School35-37 Gipps St 02 422942662St Mary Star of the Sea College15 Harbour St 02 422860113The Illawarra Hospital SchoolCrown St 02 42201218 View more business listings in wollongong Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.