In 2021, 82.6% of the Boyne Valley population was born in Australia, compared to 79.6% in the Gladstone Region.

A further 5.2 per cent were born overseas from one other English-speaking country, being the United Kingdom. A further 9 per cent did not state their country of birth.

English was the only language spoken at home in the Boyne Valley.

The number and percentage of the population that are Aboriginal and Torres Strait Islander people has fluctuated over time.

In 2021, there were eight Aboriginal and Torres Strait Islander people, living in the Boyne Valley making up 2.7 per cent of the population. While in 2016 there were 14 (3.9 per cent of the population). The number was lower again in 2011, with nine Aboriginal and Torres Strait Islander people living in the Boyne valley which equated to 2.7 per cent of the population.