Gundiah is a rural town and locality in the Fraser Coast Region, Queensland, Australia. In the 2021 census, the locality of Gundiah ha…Gundiah is a rural town and locality in the Fraser Coast Region, Queensland, Australia. In the 2021 census, the locality of Gundiah had a population of 89 people. Gundiah is 215 kilometres by road north of the state capital, Brisbane.