Llanarth is a rural locality in the Charters Towers Region, Queensland, Australia. In the , Llanarth had a population of 81 people.
In the , Llanarth had a population of 48 people.
In the , Llanarth had a population of 81 people.
Llanarth has a number of heritage-listed sites, including:
There are no schools in Llanarth nor nearby. The options are distance education and boarding school.