Important Message! SOUTHSIDE ISD - WE ARE NOW AN OPEN ENROLLMENT DISTRICT. ENROLL TODAY! Play Video Attendance Matters: Every Day Counts for Student Success Important: 2025–2026 School Start & End Times Losoya Band Performs at Texas Lutheran University ENROLL STUDENTS CARDINAL APPAREL HEALTH SERVICES DEPTS. DISTRICT GOALS SAFETY & SECURITY ASCENDER PARENT PORTAL ASCENDER EMPLOYEE ACCESS CARDINAL APPAREL ENROLL STUDENTS ASCENDER PARENT PORTAL SAFETY & SECURITY HEALTH SERVICES ASCENDER EMPLOYEE ACCESS DEPARTMENTS DISTRICT GOALS EVENTS CALENDAR DISTRICT ATHLETICS DISTRICT [calendar id="6763"] ATHLETICS [calendar id="9556"] Campus Calendars & More DISTRICT NEWS Southside ISD will be closed for Spring Break from March 9-13 March 5, 2026 Celebrating Our Southside ISD Team During Texas Public Schools Week March 5, 2026 Southside ISD Hosts Special Olympics Basketball Event for the Third Consecutive Year at Matthey Middle School March 5, 2026 Clarity Child Guidance Center Serving Students Across Southside ISD March 5, 2026 Losoya Middle School Honor Band Earns UIL Sweepstakes March 5, 2026 READ MORE DISTRICT NEWS MEDIA Play Video Play Video STAAR Redesign Information The Cardinal – Spring ’23 The Cardinal – Fall ’22 The Cardinal – Spring ’22 The Cardinal – Winter ’21 The Cardinal – Spring ’21 The Cardinal – Winter 2020 The Cardinal Newsletter – Spring 2020 The Cardinal Newsletter – Winter 2017/2018 Social Media Facebook X - Social Media Instagram YouTube
