Welcome to the Thermalito Union School District website. As you peruse our site, I hope you will learn more about our district and what we do to help our community and its families prepare themselves for their future. We serve approximately 1,350 students in grades Pre-K - 8th, and are located in the foothills of Northern California, a small rural area near the city of Oroville. The Thermalito Union School District is committed to excellence in all facets of education. The Board of Trustees, along with the administration and staff, invite you to explore the site and learn more about our District's achievements and goals.