Experience high school + college together
CTE at STISD! Choose from 21 different programs of study within 10 career clusters + opportunity to graduate with one of 36 certifications.
Best of both worlds - competitive academics + athletics
Learn from best-in-state educators and field professionals
Providing the best hands-on experience
Our Schools
South Texas ISD Health Professions
South Texas ISD Medical Professions
South Texas ISD Preparatory Academy
South Texas ISD Rising Scholars Academy
South Texas ISD Science Academy
South Texas ISD World Scholars
South Texas ISD Virtual Academy
Free Bus Transportation
Students come from three Rio Grande Valley Counties:
Cameron, Hidalgo and Willacy
Hidalgo Edinburg Mercedes Willacy Cameron San Benito Olmito
510 S. Sugar Rd., Edinburg, TX 78539
(956) 383-1684
900 Med High Dr., Mercedes, TX 78570
(956) 565-4620
151 S. Helen Moore Rd., San Benito, TX 78586
(956) 399-4358
724 S. Sugar Rd., Edinburg, TX 78539
(956) 381-5522
10650 North Expressway 77/83, Olmito, TX 78575
(956) 214-6100
700 Med High Dr., Mercedes, TX 78570
(956) 565-2237
Serving STISD's tri-county area | 956.260.2200
South Texas ISD at a Glance
![Pizza, quesadillas, salad and other assorted school lunch items on a table]([{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_1/v1755611638/stisdnet/gdpmakepzs4hks4ay5lc/006A1939.jpg","width":256},{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_2/v1755611638/stisdnet/gdpmakepzs4hks4ay5lc/006A1939.jpg","width":512},{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_3/v1755611638/stisdnet/gdpmakepzs4hks4ay5lc/006A1939.jpg","width":800},{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_4/v1755611638/stisdnet/gdpmakepzs4hks4ay5lc/006A1939.jpg","width":1200},{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_5/v1755611638/stisdnet/gdpmakepzs4hks4ay5lc/006A1939.jpg","width":1600},{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_6/v1755611638/stisdnet/gdpmakepzs4hks4ay5lc/006A1939.jpg","width":2200}])
Free Summer Meals Available at South Texas ISD Campuses June 1-30
STISD will offer free summer breakfast and lunch meals from June 1-30 for children 18 and younger, as well as enrolled students with disabilities up to age 21.
Meals will be served dine-in only Monday through Thursday at the cafeterias of four STISD campuses. Breakfast will be available from 7:30-8:30 a.m., and lunch will be served from 11:00 a.m.-12:30 p.m.
![Dr. Tony Lara smiling]([{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_1/v1778796158/k3pbnkxjmt0ctmok7rk5/DrTonyLaraheadshot2026.png","width":256},{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_2/v1778796158/k3pbnkxjmt0ctmok7rk5/DrTonyLaraheadshot2026.png","width":512},{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_3/v1778796158/k3pbnkxjmt0ctmok7rk5/DrTonyLaraheadshot2026.png","width":800},{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_4/v1778796158/k3pbnkxjmt0ctmok7rk5/DrTonyLaraheadshot2026.png","width":1200},{"url":"https://resources.finalsite.net/images/f_auto,q_auto/v1778796158/k3pbnkxjmt0ctmok7rk5/DrTonyLaraheadshot2026.png","width":1246}])
Honoring a Legacy of Leadership: STISD Superintendent Dr. Marco Antonio Lara, Jr. to retire at end of the month
After eight years leading South Texas Independent School District (STISD) and a career spanning over 30 years in education, Superintendent Dr. Marco Antonio Lara, Jr. has announced his retirement, effective May 31.
![White text announcing exam dates and the last day of school is superimposed on a blurred blue background with a subtle logo in the upper left corner.]([{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_1/v1778679115/rdheol93ftsjhiz67uis/ExamEarlyReleaseDates_1080.png","width":256},{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_2/v1778679115/rdheol93ftsjhiz67uis/ExamEarlyReleaseDates_1080.png","width":512},{"url":"https://resources.finalsite.net/images/f_auto,q_auto,t_image_size_3/v1778679115/rdheol93ftsjhiz67uis/ExamEarlyReleaseDates_1080.png","width":800},{"url":"https://resources.finalsite.net/images/f_auto,q_auto/v1778679115/rdheol93ftsjhiz67uis/ExamEarlyReleaseDates_1080.png","width":1080}])
Semester 2 Exam Schedules and Early Release Information
Next week marks the final week of the 2025–2026 school year. Semester 2 exams will take place Monday, May 18, through Thursday, May 21.
Please note that students absent during exams May 18–21 will make up missed exams the morning of Friday, May 22.
Additionally, the district will have an early release on Friday, May 22, with all students dismissed at 1:30 p.m.
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STISD Central Office Teaching and Learning Center (7001 E. Expressway 83, Mercedes)
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STISD Central Office Teaching and Learning Center (7001 E. Expressway 83, Mercedes)