Superintendent's Office
Diolinda "Didi" Peterson, Superintendent
Superintendent's Message for the 2025-2026 school year:
Welcome to the 2025-2026 school year. At Sylvan Union School District, we’re excited to begin another year of learning, growth, and connection. As stated in Our Promise, SUSD is an inclusive and safe learning community where all are welcomed, respected, and supported. Every student has equitable access to high-quality educational experiences and offerings. SUSD students form lasting connections with their peers and staff, a true testament to the supportive and welcoming environment our staff and students expect and create together.
We are deeply grateful for the incredible team of more than 1,000 educators and support staff who advocate for and serve nearly 8,000 students across 10 elementary schools and 3 middle schools. Our teachers, support staff, administrators and volunteers are the heart of Sylvan Union School District, ensuring that students receive robust and meaningful support. We have high expectations of each other and of our students, resulting in high levels of learning and enrichment. SUSD staff and educators’ dedication to our students, families and to each other make Sylvan a place where everyone learns and thrives.
We invite you to partner with us because when schools, families, and communities work together, students achieve even more. Your involvement enriches our schools and we value your voice. Throughout the year, we’ll keep you informed about school news and your child’s progress, and we welcome your feedback to help us grow and improve.
At Sylvan Union School District, we embrace the motto Belong-Believe-Achieve. We are committed to creating inclusive, welcoming learning environments where our students know that they belong, believe in their ability to succeed, and are empowered to reach their full potential. Thank you for being part of our story and community and for joining this journey as we look ahead to the new school year filled with learning, growth and opportunity. We look forward to seeing you on the first day of school on Wednesday, August 6th.
Join us in celebrating earning The Best of 209 Gold Award for School Districts for the 2nd year in a row! We appreciate our families and community support and acknowledgement.



Velma Silva, Executive Assistant to the Superintendent
Email: velmasilva@sylvan.k12.ca.us
Office: (209) 574-5000 ext. 1200
Fax: (209) 524-2672
605 Sylvan Avenue
Modesto, CA 95350
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