sylvania postcode nswrv Home ›› Postcode Finder ›› NSWRV ›› Sylvania Sylvania local listingsThe suburb of Sylvania is located in NSW and has a postcode of 2224. Free sylvania business listing! 1Sylvania High School17 Bellingara Rd 02 952299512Sylvania Heights Public School33 Lisbon St 02 952206373Sylvania Public School46 Princes Hwy 02 95227449 View more business listings in sylvania Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.