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

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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 

In Frame: Ruben Ramirez

Ruben see’s his future but lives for the moment.

He aspires to follow in his father’s footsteps and become a lawyer just like dad.

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STISD & Parent ProTech Partner to Promote Online Safety

STISD is delighted to announce a strategic partnership with Parent ProTech, a platform focused on digital citizenship education and online safety. The partnership aims to empower families, students, and educators with the tools and knowledge to safely navigate the digital landscape. 

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Congressman Vicente Gonzalez recognizes Science Academy students as top 10 winners of annual Congressional App Challenge for District 34

Congressman Vicente Gonzalez (TX-34) visited South Texas Independent School District’s (STISD) Mercedes complex last week to present awards to the top 10 winners of the annual Congressional App Challenge (CAC) competition for the 34th Congressional District of Texas. This year, all top 10 winners are students at STISD Science Academy in Mercedes.

Read More about Congressman Vicente Gonzalez recognizes Science Academy students as top 10 winners of annual Congressional App Challenge for District 34

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