The specific GPA requirements will vary from scholarship to scholarship. Be sure to look carefully at the eligibility requirements to see if there is a minimum GPA to apply.
You may also find scholarships that do not have any GPA requirements. In these cases, you should still review the eligibility requirements to see how scholarship winners are selected. For example, scholarships with essay requirements will be judged primarily on the quality of your essay. Similarly, art scholarships will be evaluated on the basis of your creative talents.
So while many scholarships will have an academic component, there are many other awards for students according to their backgrounds, experiences, interests, and goals!