SESD is an urban school district with 10 schools. For the 2026-2027 school year, classes begin August 17 and end June 10. Sunnyvale School District celebrated its 125th anniversary with a dedicated historical retrospective on its website, tracing roots back to 1889. Calendar dates are confirmed for part of the year; the rest of the 2026-2027 calendar isn't available yet — check back soon. This calendar includes 1 professional development day, 3 early-release or half days — useful to know when planning childcare.
Source: Sunnyvale School District
Also known as SESD.