MVISD is a rural school district with 8 schools. For the 2026-2027 school year, classes begin August 12 and end May 27. Medina Valley ISD is located in Castroville, TX and is opening a new Creek View High School as well as a third middle school slated for Fall 2027, reflecting the district's rapid growth in the San Antonio area. The district has said a complete 2026-2027 calendar — including early dismissal dates and teacher workdays — will be published soon. The calendar sets aside 2 additional days (February 15–April 23) that may be used as weather makeup days if needed. This calendar includes 4 professional development days — useful to know when planning childcare.
Also known as MVISD.