gwynneville postcode nswbu Home ›› Postcode Finder ›› NSWBU ›› Gwynneville Gwynneville local listingsThe suburb of Gwynneville is located in NSW and has a postcode of 2500. Free gwynneville business listing! 1Illawarra five stars Solutions24 Eastern St, Gwynneville NSW 2500, Australia 04501983262Gwynneville Public School10 Acacia Ave 02 422957283KU Gwynneville Preschool22 Berkeley St 02 4229 9917 View more business listings in gwynneville Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.