Reading
66.0%
State avg 54.5%
District avg 68.5%
County avg 62.4%
+3.0pp since 2024-25
District avg 68.5%
County avg 62.4%
+3.0pp since 2024-25
Test scores
See how it ranks: all Texas schools by score · Williamson County schools by score
STAAR, SY 2025-26
All grades, all students. % Meets Grade Level or Above.Mathematics
53.0%
State avg 45.3%
District avg 55.7%
County avg 50.5%
-6.0pp since 2024-25
District avg 55.7%
County avg 50.5%
-6.0pp since 2024-25
Science
55.0%
State avg 46.6%
District avg 59.5%
County avg 49.3%
+17.0pp since 2024-25
District avg 59.5%
County avg 49.3%
+17.0pp since 2024-25
Social Studies
N/A
State avg 47.2%
District avg 51.3%
County avg 55.1%
District avg 51.3%
County avg 55.1%
What this means: On the STAAR, Texas's statewide test, about 66 of every 100 students at this school read at grade level, about 53 of 100 do math at grade level, and about 55 of 100 are at grade level in science. Across all Texas schools, those numbers are about 55, 45, and 47. Reading scores are up about 3 points since 2024, while math scores are down about 6 points and science scores are up about 17 points.
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
56.6%
composite math + reading, all grades
Predicted
68.5%
based on TX schools with similar FRL share
Beats by
-11.9pp
below demographic expectation
What this means: About 57% of students here test proficient in math and reading, compared with the roughly 69% 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 →
2-year history
All grades, all students. TIERRA ROSA Texas avgReading
| Year | School | District | County | State |
|---|---|---|---|---|
| SY 2025-26 | 66.0% | 68.5% | 62.4% | 54.5% |
| SY 2024-25 | 63.0% | 68.9% | 61.8% | 53.3% |
Mathematics
| Year | School | District | County | State |
|---|---|---|---|---|
| SY 2025-26 | 53.0% | 55.7% | 50.5% | 45.3% |
| SY 2024-25 | 59.0% | 54.2% | 48.8% | 43.3% |
Science
| Year | School | District | County | State |
|---|---|---|---|---|
| SY 2025-26 | 55.0% | 59.5% | 49.3% | 46.6% |
| SY 2024-25 | 38.0% | 50.4% | 44.1% | 39.5% |
How to read these scores
What is STAAR?
STAAR (the State of Texas Assessments of Academic Readiness) is the annual statewide test used by all Texas public schools. Students in grades 3 through 8 take it in reading and math, with science added in grades 5 and 8 and social studies in grade 8. High school students take End-of-Course (EOC) STAAR exams in Algebra I, English I, English II, Biology, and U.S. History.
What does "% Meets Grade Level or Above" mean?
It is the percentage of students at the school whose scores reached or exceeded the "Meets Grade Level" threshold on the test. Texas reports four performance levels (Did Not Meet, Approaches, Meets, Masters). "Meets" and above means the student is performing at grade level or above. A higher number is better.
What does 66.0% mean for Reading at TIERRA ROSA EL?
It means about 66.0 percent of students tested at TIERRA ROSA EL performed at grade level or above on the STAAR Reading test in 2025-26. The statewide average for Texas that year was 54.5%. The other students fell into the lower performance levels.
How is the state average calculated?
It is a weighted average, not a simple average of each school's number. We multiply each public school's score by how many of its students tested, add those together for all schools in Texas, and divide by the total students tested that year. This way a big school with 1,500 students counts more than a small school with 50 students, which is the right way to ask "how did the typical student do this year?". District and county averages on this page use the same method, just scoped to that district or county.
Where does this data come from?
Texas Education Agency, State of Texas Assessments of Academic Readiness (STAAR), via the Texas Academic Performance Report (TAPR). School-level All Students subgroup. Headline metric is the cumulative "Meets Grade Level or Above" rate.
How often is it updated?
STAAR is administered once a year (spring). Results are released by the state in the summer or early fall. We refresh this page after each annual release.