Kostoryz Elementary School
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Pre-K | 52 | 14% |
| Kindergarten | 42 | 11% |
| Grade 1 | 53 | 14% |
| Grade 2 | 58 | 16% |
| Grade 3 | 50 | 13% |
| Grade 4 | 58 | 16% |
| Grade 5 | 58 | 16% |
This year's kindergarten class (42) is 28% smaller than its 5th grade class (58).
Test scores
STAAR 2025-26 . % Meets Grade Level or AboveWhat this means: On the STAAR, Texas's statewide test, about 47 of every 100 students at this school read at grade level and about 30 of 100 do math at grade level. Across all Texas schools, those numbers are about 55 and 45. Reading scores are up about 14 points since 2020, while math scores are down about 8 points.
Performance levels, 2025-26
| Subject | Masters Grade Level | Meets Grade Level | Approaches Grade Level | Did Not Meet Grade Level |
|---|---|---|---|---|
| Reading | 14.0% | 33.0% | 29.0% | 24.0% |
| Mathematics | 14.0% | 16.0% | 29.0% | 41.0% |
STAAR results by year
| School year | Reading | Mathematics |
|---|---|---|
| 2025-26 | 47.0% | 30.0% |
| 2024-25 | 51.0% | 39.0% |
| 2023-24 | 44.0% | 37.0% |
| 2022-23 | 29.0% | 52.0% |
| 2021-22 | 65.0% | 71.0% |
| 2020-21 | 33.0% | 38.0% |
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 39% of students here test proficient in math and reading, compared with the roughly 36% typical for Texas schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Texas's top nor bottom 10%.
Schools most like Kostoryz Elementary School
Kostoryz Elementary School's state test result (38.6% proficient) is higher than 2 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Kostoryz Elementary School this school | 371 | 89.2% | 38.6% |
| Hillcrest Elementary School AUSTIN | 376 | 88.8% | 29.9% |
| McMasters Elementary School PASADENA | 339 | 88.5% | 62.8% |
| Sparks Elementary School PASADENA | 370 | 92.4% | 54.0% |
| Gardens Elementary School PASADENA | 382 | 92.1% | 33.0% |
| Golden Acres Elementary School PASADENA | 390 | 87.4% | 39.5% |
Where Kostoryz Elementary School ranks
Among elementary schools| Measure | This school | In Texas | In Nueces County |
|---|---|---|---|
| State test proficiency ranked highest first | 38.6% | #2,765 of 4,401 | #30 of 47 |
| Math proficiency ranked highest first | 30.0% | #3,902 of 4,466 ▼ 1,089 | #46 of 51 ▼ 11 |
| Reading proficiency ranked highest first | 47.0% | #2,845 of 4,466 ▼ 511 | #36 of 51 ▼ 7 |
| 3-year test score change ranked biggest drop first | -2.0pp | #953 of 3,998 | #13 of 42 |
| Enrollment ranked largest first | 371 | #3,722 of 4,938 | #37 of 58 |
| Students per teacher ranked fewest first | 14.9:1 | #2,347 of 4,622 | #18 of 53 |
| Diversity index ranked most diverse first | 25.7% | #3,573 of 4,628 | #33 of 53 |
| Free and reduced lunch ranked highest share first | 89.2% | #1,164 of 4,789 | #20 of 56 |
| Enrollment change since 2017-18 ranked steepest decline first | -21.6% | #1,053 of 2,838 | #10 of 38 |
4-year change
SY 2020-21 vs SY 2024-25Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 371 | 24.9 | 14.9:1 | 89% (331) |
| 2023-24 | 388 | 25.9 | 15.0:1 | 89% (347) |
| 2022-23 | 384 | 25 | 15.3:1 | 88% (337) |
| 2020-21 | 379 | 25 | 15.2:1 | 91% (345) |
| 2017-18 | 473 | 30.3 | 15.6:1 | 97% (459) |
| 2015-16 | 524 | 31 | 16.9:1 | 78% (410) |
| 2010-11 | 675 | 36 | 18.8:1 | 90% (610) |
| 2000-01 | 591 | 33 | 17.9:1 | 72% (427) |
| 1990-91 | 678 | 32 | 21.2:1 | N/A |
Since 2017-18: students down 22% (473 to 371); teachers down 18% (30.3 to 24.9).
About Kostoryz Elementary School
Kostoryz Elementary School is a low-enrollment elementary school in CORPUS CHRISTI, Texas. The latest federal count shows 371 students in pre-K through 5. Against the 519-student average for elementary schools in Texas, enrollment here is 29% lower.
CORPUS CHRISTI ISD runs Kostoryz Elementary School along with 53 other schools, enrolling 33,103 students in total.
Hispanic students are the large majority at Kostoryz Elementary School, with 86% of enrollment. The remaining shares are 8% White and 4% Black. Census estimates put the Hispanic share of Nueces County's population at about 63%. By the diversity index, Kostoryz Elementary School comes in at 26%.
The school's student-to-teacher ratio is about 14.9:1, with 24.9 full-time-equivalent teachers. Elementary schools in Texas have a similar average ratio of 15.1:1. Lunch subsidy eligibility at Kostoryz Elementary School is 89%. That is higher than the 67% average for public schools in Nueces County.
Given its share of students eligible for free or reduced-price lunch, Kostoryz Elementary School would be expected to post about 35.6%. Its actual average proficiency rate on state tests is 38.6%.
Across Nueces County, median household income is about $66,897, the share of adults with a bachelor's degree or higher is 24%, and roughly 13% of residents are in poverty. Kostoryz Elementary School is among the 124 public schools in Nueces County.
The nearest other public school, Texasworks - Corpus Christi, is about 0.6 miles away. In all, at least 8 other public schools sit within five miles of Kostoryz Elementary School. Of the 7 nearby schools with scores, including this one, Kostoryz Elementary School is 4th on average proficiency.
NCES lists the school's locale as City: Large. That means it sits inside a principal city with a population of 250,000 or more.
Federal data show 379 students in 2020-21 and 371 in 2024-25, a difference of under 3%.
The allk12 site hosts a discussion page for Kostoryz Elementary School covering things like enrollment questions, class placement, and PTA news. Posting is open to anyone connected to the school.
Nueces County at a glance
View full county profileQuick facts
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