Preparing you for college, a career and life
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Best of both worlds - competitive academics + athletics
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Providing the best hands-on experience through best in state educators and field professionals
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Find your fit: Choose from 10 different careers, 22 programs of study, over 90 course offerings + the opportunity to graduate with one of 40 available certifications
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Follow your passions + join the ever-growing community of leaders and innovators
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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 

STISD Cross Country STATEBOUND

30 STISD Cross Country runners will compete at the Texas Charter School Academic & Athletic League Cross Country Meet this Saturday, Oct. 29 in Webberville, TX. 

Read More about STISD Cross Country STATEBOUND

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