Malpas-Trenton is an outback locality in the Shire of Mckinlay, Queensland, Australia. In the , Malpas-Trenton had "no people or a very low population".
The Flinders River forms most of the southern boundary before flowing through to the west.
In the , Malpas-Trenton had a population of 23 people.
In the , Malpas-Trenton had "no people or a very low population".
There are no schools in Malpas-Trenton. The nearest government primary school is Julia Creek State School in neighbouring Julia Creek to the south-west; however, it would be too distant from most parts of Malpas-Trenton. Also, there are no nearby secondary schools. The alternatives are distance education and boarding school.