<p>cpn55 is absolutely correct. These search companies are running tools that are looking for specific terms in your resume. The number of hits that match the job posting matter.</p>
<p>I do think that if you went to high school in the same area where you are applying for a job, that you should mention the high school name, and city/state, year of graduation to show that you are local. Employers generally like to hire local, because an employee with roots in the vicinity is more likely to stay.</p>