Original Research by School Decision on San Isidro H S
San Isidro High School sits at the end of a farm road in northeastern Starr County, Texas, the sole high school serving San Isidro ISD. The community itself is a small, unincorporated rural settlement that grew historically around a Catholic church, dry-land farming, and a consolidated school. Population has contracted over recent decades rather than grown, and there is no conventional downtown, no public library, and no fixed-route transit. The school is, in a real sense, one of the few institutional anchors left in the area, alongside the church and a volunteer fire department.
The student body is very small for a four-grade high school, split roughly evenly across grades nine through twelve. Almost every student is Hispanic, and nearly all qualify for free or reduced-price lunch, making this one of the more economically concentrated schools you will find anywhere in the state. Data on English learner rates and special education rates were not available in what we reviewed.
Texas STAAR results from the most recent year give a mixed picture worth reading carefully. The share of students who meet the basic passing threshold, called "approaches grade level," is quite high across all subjects combined. In ELA, approaches rates are strong, and in both science and social studies, every tested student reached that floor. Math approaches rates are also solid. These numbers tell you that the school is moving students past the minimum bar at a rate that compares well on its face.
The story changes at the higher performance levels. The "meets grade level" standard, the middle tier Texas considers on-track for college readiness, is strong in ELA and science, and respectable in social studies, but trails in math. The highest tier, "masters grade level," is where the gap opens most sharply. Across all subjects combined, masters rates are very low, and in math and social studies specifically, no students reached that level in the most recent data. ELA and science masters rates, while low, are at least above zero. Because only one year of data is available, no trend line can be drawn, so it is not possible to say whether this represents an improvement or a decline from prior years. A parent thinking about college-prep depth, especially in mathematics, may want to ask the school directly about what supports and course sequences exist beyond the STAAR floor.
On programs, the district publicly reports that it has developed early college and career readiness pathways, which would be meaningful for students in a small rural district where options can otherwise be limited. A new Pre-K 3 program was recently added at the district level, expanding early-childhood access. What specific AP, dual-credit, or CTE course offerings are available at the high school itself was not detailed in the data we reviewed, so that is a gap worth filling through a direct conversation with the school.
A graduation rate was not available in the data provided for this school in the comparison set of Starr County districts, so no position relative to local peers can be stated on that measure.
The comparison set covers the three districts in Starr County. Proficiency index, graduation rate, and chronic absenteeism comparisons were all flagged as not applicable due to missing entity-level values, so no placement relative to county peers is possible on those dimensions from this data.
For a family already in this community, the school offers an accessible, locally rooted option where the basics appear to be taught effectively and where the district is investing in pathway programming. For a family weighing a move, the housing market context is a rural area that has seen population decline rather than growth, with an economy tied historically to farming and nearby oil and gas activity. The school serves a wide catchment of rural northeastern Starr County, including surrounding colonias, and draws students from a genuinely dispersed geography. Anyone expecting a large peer environment, a wide course catalog, or urban amenities will not find them here.
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