CoolbieCoolbie is a coastal locality in the Shire of Hinchinbrook, Queensland, Australia. In the, Coolbie had a population of 110 people.DemographicsIn the, Coolbie had a population of 104 people.In the, Coolbie had a population of 110 people.EducationThere are no schools in Coolbie. The nearest government primary school is Mutarnee State School in neighbouring Mutarnee to the south-east. The nearest government secondary school is Ingham State High School in Ingham to the north-west.