Demographic targeting is a way for companies to advertise their products and services to different groups of people based on their age, gender, interests, income, and more. Companies use demographic information to learn more about their target audience and we can use this data to help them decide what kind of ads would be most effective. For example, if a company is selling toy cars, they might want to target their ads to boys between the ages of 6 and 12, because that is the group most likely to be interested.