Parents are far more aware of their choices, which means schools, whether public or private, have to earn most of the students who enroll. It means that schools need to market themselves to parents and future students.
This applies to your school as well. There used to be one school in the neighborhood, and only those few families who could afford to send children to a boarding school had any choice about where to send their children.
Now, there are myriad choices, and income or location are not the only deciding factors. School marketing, done right, is a multi-prong approach, and putting together a comprehensive marketing strategy is necessary.