Enrollment
362
Elementary
DISTRICT 923 · STATE 519
SCHOOL COMMUNITY·TRINITY BASIN PREPARATORY·NCES 480009222807
Trinity Basin Preparatory - Arlington
6301 S COLLINS, ARLINGTON, TX 76018 · (214) 946-9100 · Tarrant County
GRADES PK–06ELEMENTARY11-CITYCHARTERTITLE IREGULAR SCHOOL362 STUDENTS
Student : Teacher
15.3:1
24 FTE teachers
DISTRICT 15.9:1 · STATE 15.1:1
Free / Reduced Lunch
77%
278 students
DISTRICT 69% · 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 | 110 | 30% |
| Kindergarten | 38 | 10% |
| Grade 1 | 31 | 9% |
| Grade 2 | 35 | 10% |
| Grade 3 | 40 | 11% |
| Grade 4 | 43 | 12% |
| Grade 5 | 36 | 10% |
| Grade 6 | 29 | 8% |
This year's kindergarten class (38) is 31% larger than its 6th grade class (29).
Student demographics
67%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 60% · 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
QUIET COMMUNITY
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START A DISCUSSIONTest scores
STAAR 2025-26 . % Meets Grade Level or AboveReading
51.0%
TX avg 54.5% . +7.0pp since 2024
Mathematics
30.0%
TX avg 45.3% . +0.0pp since 2024
What this means: On the STAAR, Texas's statewide test, about 51 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 7 points since 2024, while math scores have held steady.
Performance levels, 2025-26
| Subject | Masters Grade Level | Meets Grade Level | Approaches Grade Level | Did Not Meet Grade Level |
|---|---|---|---|---|
| Reading | 25.0% | 26.0% | 21.0% | 28.0% |
| Mathematics | 8.0% | 22.0% | 30.0% | 40.0% |
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 | 51.0% | 30.0% |
| 2024-25 | 44.0% | 30.0% |
% 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
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
33.1%
composite math + reading, all grades
Predicted
40.9%
based on TX schools with similar FRL share
Beats by
-7.8pp
below demographic expectation
What this means: About 33% of students here test proficient in math and reading, compared with the roughly 41% 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%.
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 Trinity Basin Preparatory - Arlington
Trinity Basin Preparatory - Arlington's state test result (33.1% proficient) is higher than 2 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Trinity Basin Preparatory - Arlington this school | 362 | 76.8% | 33.1% |
| Glenn Harmon Elementary School ARLINGTON | 401 | 83.3% | 28.5% |
| Kenneth Davis Elementary School ARLINGTON | 335 | 73.4% | 47.0% |
| Imogene Gideon Elementary School ARLINGTON | 340 | 71.8% | 47.0% |
| Nita Pearson Elementary School ROWLETT | 455 | 75.2% | 34.2% |
| Lantern Lane Elementary School MISSOURI CITY | 434 | 74.7% | 31.1% |
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 Trinity Basin Preparatory - Arlington ranks
Among elementary schools| Measure | This school | In Texas | In Tarrant County |
|---|---|---|---|
| State test proficiency ranked highest first | 33.1% | #3,363 of 4,401 | #217 of 330 |
| Math proficiency ranked highest first | 30.0% | #3,882 of 4,466 ▼ 167 | #282 of 339 ▼ 17 |
| Reading proficiency ranked highest first | 51.0% | #2,333 of 4,466 ▲ 734 | #153 of 339 ▲ 50 |
| Enrollment ranked largest first | 362 | #3,786 of 4,938 | #297 of 353 |
| Students per teacher ranked fewest first | 15.3:1 | #2,739 of 4,622 | #220 of 348 |
| Diversity index ranked most diverse first | 67.4% | #768 of 4,628 | #115 of 348 |
| Free and reduced lunch ranked highest share first | 76.8% | #2,162 of 4,789 | #158 of 341 |
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.
About Trinity Basin Preparatory - Arlington
Trinity Basin Preparatory - Arlington is one of the public schools in ARLINGTON, Texas. It is a low-enrollment elementary school. The grade span is pre-K through 6, and enrollment is 362 students. Average enrollment for elementary schools in Texas is about 519, so this school runs 30% smaller than that.
TRINITY BASIN PREPARATORY, which runs Trinity Basin Preparatory - Arlington, has 8 schools and 7,007 students.
Black students account for 51% of enrollment at Trinity Basin Preparatory - Arlington. Smaller groups are 22% White, 9% Hispanic, 7% Asian, and 7% multiracial. For comparison, the population of Tarrant County is roughly 18% Black. The chance that two students picked at random at Trinity Basin Preparatory - Arlington belong to different racial or ethnic groups, known as the diversity index, is 67%.
Teachers at the school number 23.6 full-time equivalents, and the ratio is 15.3:1. Elementary schools in Texas have a similar average ratio of 15.1:1. Roughly 77% of the student body qualifies for free or reduced-price lunch. On average, public schools in Tarrant County report 63%.
Trinity Basin Preparatory - Arlington sits between the top and bottom 10% of Texas schools on BeatsExpectations, with an actual average proficiency rate on state tests of 33.1% and a predicted 40.9%.
Across Tarrant County, median household income is about $84,207, roughly 35% of adults have a four-year degree or more, and the share of residents below the poverty line is 8%. The public schools of Tarrant County number 639 and enroll about 385,835.
Manara STEM Academy - Arlington is the closest public school, about 0.1 miles away in a straight line. Trinity Basin Preparatory - Arlington is one of several public schools in the area, with at least 8 others within five miles. The nearest schools with test data average 42.6%, higher than Trinity Basin Preparatory - Arlington's 33.1%.
By NCES locale, the school is City: Large, or inside a principal city with a population of 250,000 or more. Trinity Basin Preparatory - Arlington operates as a charter school, which is publicly funded and run under a charter.
The allk12 site hosts a discussion page for Trinity Basin Preparatory - Arlington covering things like school events, clubs, and volunteer needs. Reviews and ratings from people who know the school are welcome.
Tarrant County at a glance
View full county profilePopulation
2,167,390
Census ACS
Median income
$84,207
Household, ACS
Bachelor's+
35%
Adults 25+
Poverty rate
8%
Below federal line
Schools in county
639
385,835 students
Quick facts
Related schools
Other schools in TRINITY BASIN PREPARATORY
- Trinity Basin Preparatory - Fort WorthElementary · 2,020 students
- Trinity Basin Preparatory - DallasElementary · 1,873 students
- Trinity Basin Preparatory - MesquiteElementary · 800 students
- Trinity Basin Preparatory - Titan AcademyHigh · 544 students
- Trinity Basin Preparatory - SouthElementary · 534 students
- Trinity Basin Preparatory - WestElementary · 441 students
Other schools in ARLINGTON
- Martin High SchoolHigh · 3,535 students
- Sam Houston High SchoolHigh · 3,208 students
- Arlington High SchoolHigh · 2,580 students
- Lamar High SchoolHigh · 2,457 students
- Bowie High SchoolHigh · 2,140 students
- Mansfield Timberview High SchoolHigh · 1,788 students
Nearby schools
- Manara STEM Academy - Arlington0.1 mi · 271
- Beckham Elementary School0.5 mi · 392
- Ousley Junior High School0.6 mi · 782
- Barnett Junior High School1.0 mi · 579
- Ashworth Elementary School1.1 mi · 464
- Arlington Collegiate High School1.1 mi · 401
Frequently asked questions
About Trinity Basin Preparatory - ArlingtonHow many students attend Trinity Basin Preparatory - Arlington?
Trinity Basin Preparatory - Arlington enrolls approximately 362 students in grades PK-06.
What grades does Trinity Basin Preparatory - Arlington serve?
Trinity Basin Preparatory - Arlington serves grades PK-06.
How many teachers does Trinity Basin Preparatory - Arlington have?
Trinity Basin Preparatory - Arlington employs 24 FTE teachers, for a student-to-teacher ratio of 15.3:1.
How diverse is Trinity Basin Preparatory - Arlington?
Trinity Basin Preparatory - Arlington reports a student body of 22% White, 9% Hispanic, 51% Black, 7% Asian, 7% Two or more.
Who oversees Trinity Basin Preparatory - Arlington?
Trinity Basin Preparatory - Arlington is overseen by TRINITY BASIN PREPARATORY in Tarrant County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.