 San Angelo ISD has 25 schools serving students Pre-K through 12th grade including one 5A (4A beginning in fall 2018) and one 6A high school, one freshman campus, three middle schools, 17 elementary schools, and two alternative campuses.SAISD also serves children birth through age five at three Head Start/Early Head Start centers.Early Head Start/Head Start provides comprehensive child development services to economically disadvantaged children and families who meet the poverty income guidelines, with a special focus on helping children from birth to age five develop the early reading and math skills they need to be successful in school.