Preparing you for college, a career and life
Best of both worlds - competitive academics + athletics
Providing the best hands-on experience through best in state educators and field professionals
Find your fit: Choose from 9 different Career Clusters, 22 Programs of Study and over 90 + Course offerings + opportunity to graduate with one of 31 available certifications
Follow your passions + join the ever-growing community of leaders and innovators

Our Schools

Free Bus Transportation

Students come from three Rio Grande Valley Counties: 

Cameron, Hidalgo and Willacy

Area of 3,643 miles

Hidalgo Edinburg Mercedes Willacy Cameron San Benito Olmito
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510 S. Sugar Rd., Edinburg, TX 78539

(956) 383-1684

900 Med High Dr., Mercedes, TX 78570

(956) 565-4620

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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 | 956.514.4201

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Welcome to STISD's seventh and newest campus, an all-virtual learning option for RGV

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South Texas ISD at a Glance

best places to teach in Texas 

Best Teachers in Texas 

school district in Texas 

of STISD graduates attend college/university | 1%: Military 

Weather Alert: June 19-20 + EOC Academy Postponed: June 24-25

Weather Alert for June 19-20: 
All on-site STISD Summer Programs + Camps have been canceled due to the possibility of heavy rainfall and flooding in our area over the next couple of days. 

Please note: Summer EOC Academy has been postponed for June 24-25. 

Read More about Weather Alert: June 19-20 + EOC Academy Postponed: June 24-25