The top reported proficiency rate is 50% in English language arts. The lowest is 28% in Science.
Original Research by School Decision on Kostoryz El
Kostoryz Elementary sits on Panama Drive in Corpus Christi's 78415 zip code, a neighborhood on the westside of the city. It serves pre-kindergarten through fifth grade within Corpus Christi ISD. Before anything else, a parent reading this needs to know one thing: as publicly reported, the school board voted in January 2026 to close Kostoryz Elementary for the 2026-27 school year as part of one of the largest campus consolidations in the district's recent history. Families currently zoned for Kostoryz will be rezoned to other campuses. That decision shapes everything else in this profile.
The school's enrollment sits at a size typical for a neighborhood elementary at this grade band, with pre-K adding a meaningful cohort below the tested grades. The student population is predominantly Hispanic, with smaller shares of white and Black students. An exceptionally high proportion of students qualify for free or reduced-price lunch, placing the school among the more economically disadvantaged campuses by that measure. English learner counts were not available in the data provided.
On the STAAR assessments, which Texas uses to measure proficiency at Levels 3 and 4, the picture is mixed and in several areas below what a parent would hope to see. In reading and language arts, third graders showed the strongest results among the tested grades, with roughly three in five reaching proficiency, but that rate declined in fourth and fifth grade. Math proficiency was lower across the board, running from about a third of third graders to under half of fifth graders reaching the standard. Fifth-grade science was the weakest result, with well under a third of students proficient. Looking at the district's broader performance bands, a majority of students across subjects reached the "approaches" threshold, meaning they demonstrated some grade-level understanding, but a much smaller share reached the "meets" standard or the highest "masters" tier. Multi-year trend data was not available; only a single year of results was reported, so there is no way to assess whether the school was improving or declining before the closure decision.
Placed against other districts in Nueces County, the school's overall proficiency index falls below the midpoint of that group. A parent considering these results as part of a school choice decision may want to ask Corpus Christi ISD directly which campus Kostoryz students will attend starting in 2026-27 and what academic supports will accompany the transition.
The closure itself came out of a district under real financial strain. Enrollment has dropped substantially over recent years as demographic shifts moved families from westside neighborhoods toward the growing Southside. A bond measure that would have funded a new Southside elementary and triggered the consolidation in a different form was defeated by voters in late 2024, and publicly reported accounts indicate district officials concluded campus closures were among the few viable financial options remaining. The district has kept its property tax rate flat or declining in recent years despite running deficit budgets.
Corpus Christi as a city is a sprawling, car-dependent coastal community where the school's neighborhood sits well apart from the bayfront cultural corridor. The housing market near the school carries home values noticeably below the Texas statewide median and well below national levels, with modest rents relative to income. Home values in the immediate zip code have edged slightly downward year over year. For families weighing a move into the attendance zone, the closure decision is the overriding practical fact: the address will not feed into Kostoryz after the current school year.
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