Best Public Schools in Mercedes, TX

The 14 schools in Mercedes, Texas, serve students from elementary through high school across four districts, including the local Mercedes Independent School District (Isd) and the regional South Texas Independent School District (Isd), with a high concentration of high schools and a student population facing significant economic challenges, as over 80% of students qualify for free or reduced lunch.

The standout schools are the magnet campuses within South Texas ISD, such as the South Texas Independent School District (Isd) Science Academy and the South Texas Independent School District (Isd) Health Professions, which rank in the top 15% of Texas high schools with 100% graduation rates and zero dropouts. Within Mercedes ISD, the Mercedes Early College Academy is a bright spot, ranking in the top 40% of high schools and achieving a 100% graduation rate despite the district's overall low performance. In contrast, the Mercedes Academic Academy struggles severely with a 68.7% graduation rate and a 14.9% dropout rate, while John F Kennedy Elementary ranks in the bottom 3% of Texas elementary schools, with only 11% of 5th graders proficient in math.

Key metrics reveal a stark performance gap: the Mercedes ISD district ranks in the 15th percentile, while South Texas ISD ranks in the 94th percentile. Spending per student does not predict success, as the South Palm Gardens High School spends $19,724 per student but ranks in the bottom 15%, whereas the Mercedes Early College Academy spends only $8,069 per student and excels. A critical weakness is elementary math, with only 8% of 6th graders at Sgt Manuel Chacon Middle proficient, and middle school performance drops sharply, with just 3% of 7th graders proficient in math, indicating a systemic failure that leaves students unprepared for high school coursework.