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Important Message!

SOUTHSIDE ISD - WE ARE NOW AN OPEN ENROLLMENT DISTRICT. 

ENROLL TODAY! 

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Losoya Band Performs at Texas Lutheran University

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Girls Track Conference Meet Results

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Heritage Elementary Recognized on the ERP Honor Roll for Academic Excellence

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ENROLL

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Campus Calendars & More

DISTRICT NEWS

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Meet the Teacher Dates are HERE!
July 14, 2025
Be a Champion
Be A Champion After-School Program for the 2025-2026 School Year
July 14, 2025
New Featured Image Website
Southside ISD School Supply List 2025-2026
July 11, 2025
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Southside ISD Board Member Earns Prestigious Master Trustee Designation
June 26, 2025
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Matthey BBQ Teams Recognized for National Awards
June 26, 2025
READ MORE DISTRICT NEWS

MEDIA

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STAAR Redesign Information

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The Cardinal – Spring ’23

The Cardinal Magazine (1)

The Cardinal – Fall ’22

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The Cardinal – Spring ’22

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The Cardinal – Winter ’21

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The Cardinal – Spring ’21

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The Cardinal – Winter 2020

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The Cardinal Newsletter – Spring 2020

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The Cardinal Newsletter – Winter 2017/2018

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SOUTHSIDE ISD

Administration Building
1460 Martinez Losoya Rd.
San Antonio, TX 78221
Phone: (210) 882-1600
Fax: (978) 244-5269

OUR SCHOOLS

Menchaca Early Childhood Center
Freedom Elementary
Heritage Elementary
Pearce Elementary
Gallardo Elementary
Matthey Middle School
Losoya Middle School
Southside High School

HELPFUL LINKS

  • Calendars
  • Departments
  • Required Postings
  • SISD Education Foundation
  • For Open Records contact Monica Saenz at monica.saenz@southsideisd.org

Vision

Southside ISD will lead educational excellence by providing innovative programs.

Mission

Southside ISD seeks to be the choice when it comes to providing a quality public education by upholding the highest standards of our core values.

Core Values

Service. Accountability. Integrity. Loyalty.

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