Enrollment
110
Elementary
DISTRICT 200 · STATE 519
SCHOOL COMMUNITY·BISHOP CISD·NCES 481026000510
Petronila Elementary School
2391 COUNTY RD 67, ROBSTOWN, TX 78380 · (361) 387-2834 · Nueces County
GRADES PK–05ELEMENTARY42-RURALTITLE IREGULAR SCHOOL110 STUDENTS
Student : Teacher
14.4:1
8 FTE teachers
DISTRICT 16.0:1 · STATE 15.1:1
Free / Reduced Lunch
67%
74 students
DISTRICT 63% · STATE 65%
Community
0
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Pre-K | 20 | 18% |
| Kindergarten | 8 | 7% |
| Grade 1 | 12 | 11% |
| Grade 2 | 13 | 12% |
| Grade 3 | 18 | 16% |
| Grade 4 | 22 | 20% |
| Grade 5 | 17 | 15% |
Student demographics
30%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 27% · STATE 63% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Students here typically continue to
Based on grade levels within BISHOP CISD. Attendance zones can vary; confirm enrollment with the district.
Test scores
STAAR 2025-26 . % Meets Grade Level or AboveReading
82.0%
TX avg 54.5% . +37.0pp since 2020
Mathematics
84.0%
TX avg 45.3% . +20.0pp since 2020
What this means: On the STAAR, Texas's statewide test, about 82 of every 100 students at this school read at grade level and about 84 of 100 do math at grade level. Across all Texas schools, those numbers are about 55 and 45. Reading scores are up about 37 points since 2020, while math scores are up about 20 points.
Performance levels, 2025-26
| Subject | Masters Grade Level | Meets Grade Level | Approaches Grade Level | Did Not Meet Grade Level |
|---|---|---|---|---|
| Reading | 47.0% | 35.0% | 14.0% | 4.0% |
| Mathematics | 44.0% | 40.0% | 7.0% | 9.0% |
Share of tested students at each STAAR level. Each student counts in one level, so a row adds to about 100%.
STAAR results by year
| School year | Reading | Mathematics |
|---|---|---|
| 2025-26 | 82.0% | 84.0% |
| 2024-25 | 75.0% | 74.0% |
| 2023-24 | 72.0% | 82.0% |
| 2022-23 | 60.0% | 100.0% |
| 2021-22 | 77.0% | 92.0% |
| 2020-21 | 45.0% | 64.0% |
% Meets Grade Level or Above, all students and all tested grades.
Source: STAAR. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
OUTPERFORMING
Top 10% of TX schools after controlling for student poverty
Actual proficiency
67.2%
composite math + reading, all grades
Predicted
45.0%
based on TX schools with similar FRL share
Beats by
+22.2pp
above demographic expectation
What this means: About 67% of students here test proficient in math and reading, well above the roughly 45% typical for Texas schools with a similar share of low-income students. BeatsExpectations ranks schools against others at the same poverty level, not by raw scores, so a school can post high scores and still fall short of its prediction, or post lower scores and still beat it. This school clears its prediction by about 22 points, placing it in Texas's top 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Petronila Elementary School
Petronila Elementary School's state test result (67.2% proficient) is higher than 5 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Petronila Elementary School this school | 110 | 67.3% | 67.2% |
| La Gloria Elementary School FALFURRIAS | 119 | 60.5% | 35.9% |
| Nanny Elementary School RIVIERA | 143 | 68.5% | 27.1% |
| Maude Mae Kirchner Elementary School QUEMADO | 108 | 77.8% | 44.1% |
| Eldorado Elementary School ELDORADO | 144 | 65.3% | 58.8% |
| Damon Elementary School DAMON | 107 | 72.9% | 39.0% |
Matched among Texas elementary schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Petronila Elementary School ranks
Among elementary schools| Measure | This school | In Texas | In Nueces County |
|---|---|---|---|
| State test proficiency ranked highest first | 67.2% | #405 of 4,401 | #3 of 47 |
| Math proficiency ranked highest first | 84.0% | #67 of 4,466 ▲ 207 | #2 of 51 ▲ 1 |
| Reading proficiency ranked highest first | 82.0% | #189 of 4,466 ▲ 289 | #2 of 51 ▲ 2 |
| 3-year test score change ranked biggest gain first | +3.0pp | #2,399 of 3,998 | #22 of 42 |
| Enrollment ranked largest first | 110 | #4,815 of 4,938 | #58 of 58 |
| Free and reduced lunch ranked highest share first | 67.3% | #2,710 of 4,789 | #36 of 56 |
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
110
+15 (+16%) vs 2020
-13% since 1990-91, when it was 126
Student : Teacher
14.4:1
was 11.9:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 110 | 7.6 | 14.4:1 | 67% (74) |
| 2023-24 | 98 | 9.1 | 10.8:1 | 66% (65) |
| 2022-23 | 98 | 8.8 | 11.2:1 | 67% (66) |
| 2020-21 | 95 | 8 | 11.9:1 | 71% (67) |
| 2017-18 | 107 | 8.5 | 12.7:1 | 83% (89) |
| 2015-16 | 100 | 8 | 12.5:1 | 84% (84) |
| 2010-11 | 111 | 8 | 13.9:1 | 77% (85) |
| 2000-01 | 105 | 8 | 13.1:1 | 77% (81) |
| 1990-91 | 126 | 8 | 15.8:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Petronila Elementary School.
Since 2017-18: students up 3% (107 to 110); teachers down 10% (8.5 to 7.6).
About Petronila Elementary School
Petronila Elementary School sits in ROBSTOWN, Texas, and is classified as an elementary school. The school teaches pre-K through 5 and enrolls 110 students. It has 79% fewer students than the average for elementary schools in Texas (about 519).
BISHOP CISD enrolls 1,463 students, and its 5 schools include Petronila Elementary School.
At Petronila Elementary School, 82% of students are Hispanic. The school is also 17% White. That is higher than the 63% Hispanic share among all Nueces County residents. The diversity index for Petronila Elementary School is 30%. For US public schools as a whole it is 70%.
There are 7.6 full-time-equivalent teachers at Petronila Elementary School, giving a ratio of 14.4:1. The 15.1:1 average for elementary schools in Texas is close to this figure. A total of 74 students, or 67%, are eligible for free or reduced-price lunch. The average for public schools in Nueces County is similar, at 67%.
Petronila Elementary School posts an average proficiency rate across its state test results of 67.2%. Schools with its free or reduced-price lunch share in Texas are predicted to post 45.0%, so the school is 22.2 points ahead and in the state's top 10%.
In the surrounding county, Nueces County, median household income comes to about $66,897, a bachelor's degree or higher is held by about 24% of adults, and the share of residents below the poverty line is 13%. The county's public schools total 124, with about 59,619 students.
Driscoll El & Middle School is about 7.2 miles from Petronila Elementary School, the shortest distance to any other public school. A ten-mile radius around the school includes at least 8 other public schools. By average proficiency, Petronila Elementary School is 2nd among 9 schools close by.
NCES lists the school's locale as Rural: Distant. That means it sits in rural territory some distance from an urban area.
From 95 students in 2020-21, enrollment rose to 110 by 2024-25. From 2020-21 to 2024-25, the ratio increased from 11.9:1 to 14.4:1.
This page is a place to ask questions and share updates about fundraisers, report cards, and school supplies at Petronila Elementary School. Parents, students, alumni, and staff are welcome to post.
Nueces County at a glance
View full county profilePopulation
352,955
Census ACS
Median income
$66,897
Household, ACS
Bachelor's+
24%
Adults 25+
Poverty rate
13%
Below federal line
Schools in county
124
59,619 students
Quick facts
Related schools
Other schools in BISHOP CISD
- Bishop High SchoolHigh · 533 students
- Lillion E Luehrs Junior High SchoolMiddle · 330 students
- Bishop Primary SchoolElementary · 258 students
- Bishop Elementary SchoolElementary · 232 students
- Nueces Co J J Alternative Education ProgramElementary
Other schools in ROBSTOWN
- Robstown Early College High SchoolHigh · 750 students
- Robert Driscoll Jr STEM AcademyElementary · 676 students
- Seale Junior High SchoolMiddle · 533 students
- Lotspeich Leadership AcademyElementary · 368 students
- San Pedro Fine Arts AcademyElementary · 243 students
- Nueces Co J J Alternative Education ProgramElementary
Nearby schools
- Driscoll El & Middle School7.2 mi · 289
- Lotspeich Leadership Academy8.1 mi · 368
- Seale Junior High School8.7 mi · 533
- Robert Driscoll Jr STEM Academy8.9 mi · 676
- San Pedro Fine Arts Academy8.9 mi · 243
- Robstown Early College High School9.2 mi · 750
Frequently asked questions
About Petronila Elementary SchoolHow large is Petronila Elementary School?
Petronila Elementary School enrolls approximately 110 students in grades PK-05.
What grades does Petronila Elementary School serve?
Petronila Elementary School serves grades PK-05.
What is the student-teacher ratio at Petronila Elementary School?
The student-to-teacher ratio at Petronila Elementary School is approximately 14.4:1 (8 FTE teachers).
What is the student diversity at Petronila Elementary School?
Student demographics at Petronila Elementary School are roughly 17% White, 82% Hispanic, 1% Two or more.
Is Petronila Elementary School public or private?
Petronila Elementary School is a public K-12 school, overseen by BISHOP CISD.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.