YISD is an urban school district with 54 schools. For the 2026-2027 school year, classes begin August 3 and end June 4. The calendar sets aside 2 additional days (March 15–March 29) that may be used as weather makeup days if needed. This calendar includes 5 professional development days, 4 early-release or half days — useful to know when planning childcare. Standardized testing windows: Standardized Testing Window (December 1–December 3); Standardized Testing Window (April 6–April 9); Standardized Testing Window (April 13–April 16); Standardized Testing Window (April 20–April 23); Standardized Testing Window (June 15–June 17).
Also known as YISD.