1
Which teacher or staff member at C A MCMILLEN H S deserves more recognition?
Community prompt from u/allk12. Replies below.
Enrollment
1,010
High
DISTRICT 1,262 · STATE 796
SCHOOL COMMUNITY·PLANO ISD·NCES 483510012193
McMillen High School
750 N MURPHY RD, MURPHY, TX 75094 · (469) 752-8600 · Collin County
GRADES 09–10HIGH21-SUBURBREGULAR SCHOOL1,010 STUDENTS
Student : Teacher
14.8:1
68 FTE teachers
DISTRICT 14.8:1 · STATE 15.1:1
Free / Reduced Lunch
38%
381 students
DISTRICT 39% · STATE 65%
Community
1
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 | 481 | 48% |
| Grade 10 | 529 | 52% |
Student demographics
75%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 76% · 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
McMillen High School→Plano East Sr High School
Based on published attendance-zone data from PLANO ISD. Zones change; confirm enrollment with the district.
Test scores
STAAR 2025-26 . % Meets Grade Level or AboveReading
68.0%
TX avg 54.5% . +43.0pp since 2020
Mathematics
33.0%
TX avg 45.3% . +15.0pp since 2020
What this means: On the STAAR, Texas's statewide test, about 68 of every 100 students at this school read at grade level and about 33 of 100 do math at grade level. Across all Texas schools, those numbers are about 55 and 45. Reading scores are up about 43 points since 2020, while math scores are up about 15 points.
Performance levels, 2025-26
| Subject | Masters Grade Level | Meets Grade Level | Approaches Grade Level | Did Not Meet Grade Level |
|---|---|---|---|---|
| Reading | 14.0% | 54.0% | 14.0% | 18.0% |
| Mathematics | 12.0% | 21.0% | 36.0% | 31.0% |
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 | 68.0% | 33.0% |
| 2024-25 | 68.0% | 29.0% |
| 2023-24 | 69.0% | 36.0% |
| 2022-23 | 36.0% | 18.0% |
| 2021-22 | 25.0% | 12.0% |
| 2020-21 | 25.0% | 18.0% |
% 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
57.3%
composite math + reading, all grades
Predicted
57.6%
based on TX schools with similar FRL share
Beats by
-0.3pp
below demographic expectation
What this means: About 57% of students here test proficient in math and reading, compared with the roughly 58% 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 McMillen High School
McMillen High School's state test result (57.3% proficient) is higher than 1 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| McMillen High School this school | 1,010 | 37.7% | 57.3% |
| Clark High School PLANO | 1,114 | 35.3% | 53.0% |
| Harmony School of Innovation - Dallas DALLAS | 539 | 46.2% | 61.3% |
| Glenda Dawson High School PEARLAND | 2,569 | 29.9% | 78.0% |
| Ischool High at University Park HOUSTON | 433 | 32.8% | 67.4% |
| Tomball Star Academy TOMBALL | 402 | 28.4% | 97.8% |
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 McMillen High School ranks
Among high schools| Measure | This school | In Texas | In Collin County |
|---|---|---|---|
| State test proficiency ranked highest first | 57.3% | #577 of 1,385 | #21 of 31 |
| Math proficiency ranked highest first | 33.0% | #1,024 of 1,425 ▼ 18 | #33 of 38 ▼ 1 |
| Reading proficiency ranked highest first | 68.0% | #412 of 1,425 ▼ 47 | #26 of 38 ▼ 1 |
| 3-year test score change ranked biggest gain first | +23.5pp | #304 of 1,184 | #19 of 36 |
| Enrollment ranked largest first | 1,010 | #576 of 2,107 | #33 of 48 |
| Students per teacher ranked fewest first | 14.8:1 | #705 of 1,344 | #12 of 38 |
| Diversity index ranked most diverse first | 75.3% | #19 of 1,346 | #4 of 38 |
| Free and reduced lunch ranked highest share first | 37.7% | #1,244 of 1,522 | #11 of 33 |
| Enrollment change since 2017-18 ranked steepest decline first | -16.7% | #141 of 557 | #3 of 16 |
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
1,010
-234 (-19%) vs 2020
Student : Teacher
14.8:1
was 15.9:1
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 | 1,010 | 68.1 | 14.8:1 | 38% (381) |
| 2023-24 | 1,100 | 66.5 | 16.6:1 | 41% (446) |
| 2022-23 | 1,170 | 69.6 | 16.8:1 | 41% (474) |
| 2020-21 | 1,244 | 78 | 15.9:1 | 37% (464) |
| 2017-18 | 1,213 | 76.8 | 15.8:1 | 29% (353) |
| 2015-16 | 1,160 | 72 | 16.1:1 | 31% (357) |
Source: NCES Common Core of Data. Rows are the federal collections on file for McMillen High School.
Since 2017-18: students down 17% (1,213 to 1,010); teachers down 11% (76.8 to 68.1).
About McMillen High School
In MURPHY, Texas, part of Collin County, McMillen High School is a high school. The school counts 1,010 students across grades 9 through 10. The typical figure for high schools in Texas is about 796 students.
District-wide, PLANO ISD has 73 schools and 46,612 students.
The most common group at McMillen High School is Hispanic students, at 30%. It is also 30% White, 22% Asian, 13% Black, and 5% multiracial. Collin County's residents are about 16% Hispanic, 14 points below the school's share. McMillen High School's diversity index is 75%, against a US figure of 70%.
Its 68.1 full-time-equivalent teachers give the school a ratio of 14.8:1. That is close to the 15.1:1 average for high schools in Texas. The percentage of students eligible for free or reduced-price lunch is 38%. That rate is above the 30% average among public schools in Collin County.
Based on student poverty, the model expects 57.6% at McMillen High School; the school's average proficiency rate on state tests is 57.3%.
McMillen High School is located in Collin County, where the median household income is $121,600, roughly 56% of adults have a four-year degree or more, and the share of residents below the poverty line is 5%. McMillen High School is one of 338 public schools in the county.
The closest public school to McMillen High School is Murphy Middle School, about 0.3 miles away. Counting only straight-line distance, at least 8 other public schools are within five miles. Its average proficiency rate of 57.3% is below the 69.8% average for nearby schools.
NCES lists the school's locale as Suburb: Large. That means it sits in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.
Enrollment has fallen by 234 students since 2020-21, to 1,010. The ratio of students to teachers went from 15.9:1 to 14.8:1 over the same years.
The McMillen High School community page is open for posts about sports tryouts, band and choir, and theater. Posting is open to anyone connected to the school.
Collin County at a glance
View full county profilePopulation
1,163,337
Census ACS
Median income
$121,600
Household, ACS
Bachelor's+
56%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
338
227,575 students
Quick facts
Related schools
Other schools in PLANO ISD
- Plano East Sr High SchoolHigh · 3,033 students
- Plano West Senior High SchoolHigh · 2,559 students
- Plano Sr High SchoolHigh · 2,267 students
- Shepton High SchoolHigh · 1,360 students
- Jasper High SchoolHigh · 1,301 students
- Renner Middle SchoolMiddle · 1,137 students
Other schools in MURPHY
- Murphy Middle SchoolMiddle · 901 students
- Boggess Elementary SchoolElementary · 498 students
- Hunt Elementary SchoolElementary · 491 students
Nearby schools
- Murphy Middle School0.3 mi · 901
- Boggess Elementary School0.6 mi · 498
- Tibbals Elementary School0.7 mi · 609
- Hunt Elementary School1.0 mi · 491
- R V Groves Elementary School1.0 mi · 680
- Schell Elementary School2.0 mi · 403
Frequently asked questions
About McMillen High SchoolWhat is the total enrollment at McMillen High School?
McMillen High School enrolls approximately 1,010 students in grades 09-10.
What grades does McMillen High School serve?
McMillen High School serves grades 09-10.
What is the student-teacher ratio at McMillen High School?
The student-to-teacher ratio at McMillen High School is approximately 14.8:1 (68 FTE teachers).
What is the racial breakdown of students at McMillen High School?
At McMillen High School, the student body is approximately 30% White, 30% Hispanic, 13% Black, 22% Asian, 5% Two or more.
Is McMillen High School public or private?
McMillen High School is a public K-12 school, overseen by PLANO ISD.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.