MERCEDES – U.S. News & World Report published its 2021 Best U.S. High Schools Rankings this week, and all four South Texas Independent School District (STISD) high schools again rank among the best in the state and nation. In the state rankings, South Texas ISD Health Professions (now Health Professions, and previously South Texas High School for Health Professions, or Med High) in Mercedes ranked 34th, South Texas ISD Science Academy (Science Academy) in Mercedes ranked 45th, South Texas ISD Medical Professions (now Medical Professions, and previously South Texas Academy for Medical Professions, or Medical Academy) in Olmito ranked 79th, and ...