Important Message! SOUTHSIDE ISD - WE ARE NOW AN OPEN ENROLLMENT DISTRICT. ENROLL TODAY! Play Video Losoya Band Performs at Texas Lutheran University Girls Track Conference Meet Results Heritage Elementary Recognized on the ERP Honor Roll for Academic Excellence ENROLL STUDENTS CARDINAL APPAREL ONLINE STORE 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 Meet the Teacher Dates are HERE! July 14, 2025 Be A Champion After-School Program for the 2025-2026 School Year July 14, 2025 Southside ISD School Supply List 2025-2026 July 11, 2025 Southside ISD Board Member Earns Prestigious Master Trustee Designation June 26, 2025 Matthey BBQ Teams Recognized for National Awards June 26, 2025 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