Summary:
Zip code 76941, serving the Mertzon, Texas area, is home to a single high school, Irion High School, which serves grades 7 through 12 as part of the Irion County Independent School District (Isd).
Irion High School is a standout rural school with exceptional recent academic growth and near-perfect student outcomes. With a small enrollment of 134 students and a very low student-teacher ratio of 7.1:1, students receive highly individualized attention. The school boasts a 100% graduation rate and a 0% dropout rate for the 2023-2024 school year. Its state ranking has skyrocketed, jumping from the 70th percentile in 2024-2025 to the 92nd percentile (5 stars) in 2025-2026, placing it among the top 8% of high schools in Texas. Per-student spending is significantly high at $17,951, and only 26.87% of students qualify for free or reduced lunch.
In the most recent testing year, Irion High School dramatically outperformed state averages in nearly every subject, with 91.3% of students proficient in English I Reading and 91.89% proficient in U.S. History. However, a notable "math gap" exists, as only 44.44% of 7th graders and 55% of 8th graders were proficient in mathematics, though these figures still exceed state averages. The school's incredible one-year turnaround in state ranking and some year-over-year volatility in specific subjects (like U.S. History jumping from 58.82% to 91.89% proficiency) are likely influenced by its small class sizes, where the performance of a few students can significantly shift overall percentages. This school is a prime example of a small, well-funded institution achieving elite academic status.
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