illawong postcode nswbu Home ›› Postcode Finder ›› NSWBU ›› Illawong Illawong local listingsThe suburb of Illawong is located in NSW and has a postcode of 2234. Free illawong business listing! 1Graphic Design BankstownFowler Rd 02 9543 18952Menai High School40 Gerald Rd 02 954370003Illawong Public School276 Fowler Rd 02 95431604 View more business listings in illawong Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.