Home - South Texas ISD Preparatory Academy

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

A colorful "Back-2-School Kick Off Makeup Event" poster for South Texas ISD features a white background with playful graphics, while the foreground highlights details about free school supplies and schedule pick-up on Saturday, August 15th.

Back-2-School Kick-Off Makeup Events This Saturday, Aug. 15

Aug 12 2026

South Texas ISD will host Back-2-School Kick-Off Makeup Events at all STISD schools on Saturday, Aug. 15, from 9 a.m. to noon for enrolled students/families who were unable to attend their campus event held Aug. 4-6.

During the makeup events, families can visit their student’s campus to pick up class schedules and free school supplies provided by STISD.

Decorative image showing students for a Back-2-school message

Your STISD Back-2-School Guide - Resources for Students and Families

Aug 13 2026

STISD is ready to welcome students back to campus on Monday, August 17.

Whether you’re a returning STISD family or joining us for the first time, we’ve pulled together some helpful Back-2-School resources to make getting ready for the new school year a little easier.

Decorative image showing information about our Nutrition department.

Back-2-School Nutrition Updates

Aug 13 2026

With the new school year just around the corner, STISD is preparing to welcome students back to campus with nutritious meals and options.

The STISD Nutrition Department has released its August breakfast and lunch menus, giving students and families an opportunity to plan ahead for the first weeks of school.