TSD is a suburban school district with 10 schools. For the 2026-2027 school year, classes begin August 26 and end June 15. Tahoma School District was established in 1926 and serves approximately 9,300 students across southeast King County, Washington, operating under the motto 'Future Ready Students.' The calendar sets aside 2 additional days (March 19–May 28) that may be used as weather makeup days if needed. This calendar includes 4 early-release or half days — useful to know when planning childcare.
Also known as TSD.