Summary:
Zip code 78566, serving the Los Fresnos, Texas area, is home to a single large high school, Los Fresnos High School, which serves grades 9-12 with an enrollment of 3,285 students as part of the Los Fresnos Consolidated Independent School District.
Los Fresnos High School stands out for consistently outperforming state averages across all five core subjects—Algebra I, Biology, English I, English II, and U.S. History—despite a high rate of economic disadvantage, with 77.5% of students qualifying for free or reduced lunch. The school’s state ranking has shown a strong upward trend, improving from the 54th percentile in 2023-2024 to the 67th percentile in 2025-2026, placing it 657th out of 2,009 Texas high schools. Biology is a particular strength, with 81.96% proficiency compared to the state’s 70.51%, while U.S. History also remains above average at 73.13%. The graduation rate is solid at 91.7%, though the dropout rate of 1.2% is higher than the district average of 0.8%, a metric worth monitoring.
One notable area for improvement is Algebra I, where the school’s proficiency rate of 65.07%—while above the state average of 54.03%—lags behind the district average of 70.77%, suggesting a need for targeted math support. Overall, Los Fresnos High School demonstrates effective instructional strategies that help students overcome socioeconomic barriers, making it a strong choice for families in the area, with a clear trajectory of improvement and a focus on academic growth.
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