Drillham South is a rural locality in the Western Downs Region, Queensland, Australia. In the , Drillham South had a population of 73 people.
The land use is predominantly grazing on native vegetation with some crop growing.
In the , Drillham South had a population of 67 people.
In the , Drillham South had a population of 73 people.
There are no schools in Drillham South. The nearest government primary schools are:
The nearest government secondary school is Miles State High School, also in Miles.