illawong postcode nswrv Home ›› Postcode Finder ›› NSWRV ›› Illawong Illawong local listingsThe suburb of Illawong is located in NSW and has a postcode of 2234. Free illawong business listing! 1Menai High School40 Gerald Rd 02 954370002Illawong Public School276 Fowler Rd 02 954316043Graphic Design In SydneyFowler Rd 02 9543 1895 View more business listings in illawong Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.