Enrollment
258
High
DISTRICT 280 · STATE 796
SCHOOL COMMUNITY·DILLEY ISD·NCES 481710001483
Dilley High School
#1 GREY WOLF DR, DILLEY, TX 78017 · (830) 965-1814 · Frio County
GRADES 09–12HIGH43-RURALTITLE IREGULAR SCHOOL258 STUDENTS
Student : Teacher
9.6:1
27 FTE teachers
DISTRICT 10.4:1 · STATE 15.1:1
Free / Reduced Lunch
72%
187 students
DISTRICT 79% · STATE 65%
Community
0
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 54 | 21% |
| Grade 10 | 64 | 25% |
| Grade 11 | 79 | 31% |
| Grade 12 | 61 | 24% |
Student demographics
12%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 11% · 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
Feeds from
Based on grade levels within DILLEY ISD. Attendance zones can vary; confirm enrollment with the district.
Test scores
STAAR 2025-26 . % Meets Grade Level or AboveReading
28.0%
TX avg 54.5% . -2.0pp since 2020
Mathematics
25.0%
TX avg 45.3% . +8.0pp since 2020
What this means: On the STAAR, Texas's statewide test, about 28 of every 100 students at this school read at grade level and about 25 of 100 do math at grade level. Across all Texas schools, those numbers are about 55 and 45. Reading scores are down about 2 points since 2020, while math scores are up about 8 points.
Performance levels, 2025-26
| Subject | Masters Grade Level | Meets Grade Level | Approaches Grade Level | Did Not Meet Grade Level |
|---|---|---|---|---|
| Reading | 4.0% | 24.0% | 29.0% | 43.0% |
| Mathematics | 6.0% | 19.0% | 47.0% | 28.0% |
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 | 28.0% | 25.0% |
| 2024-25 | 29.0% | 7.0% |
| 2023-24 | 30.0% | 8.0% |
| 2022-23 | 31.0% | 0.0% |
| 2021-22 | 22.0% | 14.0% |
| 2020-21 | 30.0% | 17.0% |
% 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
UNDERPERFORMING
Bottom 10% of TX schools after controlling for student poverty
Actual proficiency
23.8%
composite math + reading, all grades
Predicted
42.7%
based on TX schools with similar FRL share
Beats by
-19.0pp
below demographic expectation
What this means: About 24% of students here test proficient in math and reading, below the roughly 43% typical for Texas schools with a similar share of low-income students. BeatsExpectations compares each school with others at the same poverty level, not by raw scores, so a school lands here when its results trail those comparable schools, which is not the same as having low scores. A higher-scoring school can still fall in this tier if similar schools score higher still.
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 Dilley High School
Dilley High School's state test result (23.8% proficient) is higher than 0 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Dilley High School this school | 258 | 72.5% | 23.8% |
| Anthony High School ANTHONY | 243 | 74.9% | 51.2% |
| Monte Alto High School MONTE ALTO | 255 | 74.9% | 38.7% |
| Clint ISD Early College Academy CLINT | 290 | 68.3% | 81.7% |
| Eastwood Academy HOUSTON | 365 | 71.5% | 78.2% |
| Falfurrias High School FALFURRIAS | 370 | 73.0% | 37.9% |
Matched among Texas high 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 Dilley High School ranks
Among high schools| Measure | This school | In Texas |
|---|---|---|
| State test proficiency ranked highest first | 23.8% | #1,376 of 1,385 |
| Math proficiency ranked highest first | 25.0% | #1,216 of 1,425 ▲ 202 |
| Reading proficiency ranked highest first | 28.0% | #1,398 of 1,425 ▼ 52 |
| 3-year test score change ranked biggest gain first | +11.0pp | #765 of 1,184 |
| Enrollment ranked largest first | 258 | #1,222 of 2,107 |
| Students per teacher ranked fewest first | 9.6:1 | #88 of 1,344 |
| Diversity index ranked most diverse first | 11.7% | #1,190 of 1,346 |
| Free and reduced lunch ranked highest share first | 72.5% | #531 of 1,522 |
| Enrollment change since 2017-18 ranked steepest decline first | -14.0% | #179 of 557 |
Ranked against other public high 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
258
-9 (-3%) vs 2020
-3% since 1990-91, when it was 266
Student : Teacher
9.6:1
was 11.1:1
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 | 258 | 26.9 | 9.6:1 | 72% (187) |
| 2023-24 | 266 | 29.3 | 9.1:1 | 76% (203) |
| 2022-23 | 280 | 27 | 10.4:1 | 77% (216) |
| 2020-21 | 267 | 24 | 11.1:1 | 74% (198) |
| 2017-18 | 300 | 25.7 | 11.7:1 | 67% (202) |
| 2015-16 | 267 | 25 | 10.7:1 | 54% (145) |
| 2010-11 | 254 | 26 | 9.8:1 | 25% (64) |
| 2000-01 | 227 | 25 | 9.1:1 | 44% (101) |
| 1990-91 | 266 | 17 | 15.7:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Dilley High School.
Since 2017-18: students down 14% (300 to 258); teachers up 5% (25.7 to 26.9).
About Dilley High School
Dilley High School is a small high school serving families in DILLEY, Texas. Enrolled students number 258 students, in grades 9 through 12. Enrollment is 68% lower than the average for high schools in Texas, which is about 796.
DILLEY ISD (3 schools, 841 students) runs Dilley High School.
About 94% of the student body at Dilley High School is Hispanic. The remaining students are 6% White. Among people living in Frio County, the Hispanic share is about 78%. Pick two students at random and there is a 12% chance they belong to different racial or ethnic groups; that figure is the school's diversity index.
Teachers at the school number 26.9 full-time equivalents, and the ratio is 9.6:1. On average, high schools in Texas have 15.1:1, compared with 9.6:1 here. The school's lunch program data list 72% of students as eligible for free or reduced-price meals. It compares with 82% for public schools in Frio County.
After accounting for student poverty, Dilley High School is in the bottom 10% of Texas schools. Its average proficiency rate on state tests of 23.8% is 19.0 points below the 42.7% predicted for its lunch-eligibility share.
Frio County has these Census figures: the median household income is $66,010, the share of adults with a bachelor's degree or higher is 12%, and about 16% of residents live below the federal poverty line. Frio County is home to 7 public schools and about 2,792 public school students.
Mary Harper Middle School is the closest public school, less than a tenth of a mile away in a straight line. Other public schools within five miles number 2. Dilley High School comes in 7th of 8 nearby schools on average proficiency.
Its NCES locale code is Rural: Remote: the school is in rural territory far from an urban area.
Dilley High School's enrollment dropped from 267 in 2020-21 to 258 in 2024-25. Federal data show the ratio falling from 11.1:1 to 9.6:1.
The allk12 site hosts a discussion page for Dilley High School covering things like sports tryouts, band and choir, and theater. Reviews and ratings from people who know the school are welcome.
Frio County at a glance
View full county profilePopulation
18,582
Census ACS
Median income
$66,010
Household, ACS
Bachelor's+
12%
Adults 25+
Poverty rate
16%
Below federal line
Schools in county
7
2,792 students
Quick facts
Related schools
Other schools in DILLEY ISD
- Dilley Elementary SchoolElementary · 402 students
- Mary Harper Middle SchoolMiddle · 181 students
Other schools in DILLEY
- Dilley Elementary SchoolElementary · 402 students
- Mary Harper Middle SchoolMiddle · 181 students
Nearby schools
- Mary Harper Middle School0.0 mi · 181
- Dilley Elementary School0.2 mi · 402
- Pearsall Junior High School16.1 mi · 434
- Pearsall Intermediate School16.2 mi · 442
- Ted Flores Elementary School16.2 mi · 503
- Pearsall High School16.5 mi · 572
Frequently asked questions
About Dilley High SchoolWhat is the total enrollment at Dilley High School?
Dilley High School enrolls approximately 258 students in grades 09-12.
What grades does Dilley High School serve?
Dilley High School serves grades 09-12.
How many students per teacher at Dilley High School?
Approximately 9.6:1 students per teacher at Dilley High School.
What is the racial breakdown of students at Dilley High School?
At Dilley High School, the student body is approximately 6% White, 94% Hispanic, 0% Black.
Is Dilley High School public or private?
Dilley High School is a public K-12 school, overseen by DILLEY ISD.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.