Welcome to San Isidro ISD!
San Isidro Independent School District is a Texas Education Agency "Recognized" school district located in Starr County, Texas. Our School District encompasses 275 square miles of our rural farming community centered around San Isidro, TX.
San Isidro ISD serves 263+ students at our elementary/jr. high school and high school campus.
The vision of the San Isidro ISD is that "San Isidro ISD will be an exemplary educational community dedicated to the highest standards of quality at all levels and in all areas of endeavor. All parents, community members, and district employees, respecting and valuing each other, will be committed to providing all students with an education which enables them to live successfully in an ever-changing society."


  • Health Fair  
    San Isidro's Annual Health Fair will be held on April 9th from 8:00 am - 12:00 pm at the old gymnasium.  Come by and visit with health professionals throughout the morning. Blood bank will be here to take blood donations from 9:00 am - 2:30 pm in the mobile unit parked outside gymnasium.
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  • Congratulations Hilary Whitaker
    2014 Starr County Youth Fair Queen
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  • Sync Our School Calendar to your Smart Phone
    Stay up to date with school events by keeping our school calendar on your mobile device.
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  • Online Access to Student Grades
    Get your kids' grades online Today!
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