gayndah postcode qldga Home ›› Postcode Finder ›› QLDGA ›› Gayndah Gayndah local listingsThe suburb of Gayndah is located in QLD and has a postcode of 4625. Free gayndah business listing! 1Gayndah State School33 Meson St 07 416033332St Joseph's School39 Meson St 07 416118893Binjour Plateau State School18401 Burnett Highway 07 41613158 View more business listings in gayndah Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.