Enrollment
490
Texas · 2024-25 NCES data
Middle school (grades 6-8) · Plano, TX
Armstrong Middle
Federal NCES profile for Armstrong Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 483510003955
👥 S:T ratio 53
🌟 Gifted program 70
🎓 Counselors 67
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Armstrong Middle earns 48/100 on the Resource Investment Index, with class sizes smaller than 79% of Texas schools.
- #10 of 12
- middle schools in Plano · Resource Index
- 48
- Resource Index · Typical
- 11.7:1
- small classes for Texas
- 71.7%
- free-lunch eligible
Armstrong Middle has class sizes smaller than 79% of Texas schools. Computed live against every Texas school reporting to NCES.
By Resource Investment Index, Armstrong Middle ranks #10 of 12 middle schools in Plano, TX.
School address
Teachers (FTE)
42.0
Federal CCD staff survey
Students per teacher
11.7:1
vs 14.7:1 Texas avg
-20% vs state
Free-lunch eligible
71.7%
vs 61.9% Texas avg
+16% vs state
Student-teacher ratio in context
How Armstrong Middle compares with Texas and U.S. medians
What stands out at Armstrong Middle
Armstrong Middle is a higher-need, mid-sized middle school in Plano, Texas, enrolling 490 students.
Class sizes run a bit leaner than typical: 11.7:1 puts it in the smaller third of Texas schools by student-teacher ratio.
Its free-meal eligibility rate of 71.7% lands close to the Texas typical range, neither a high- nor low-need campus by this measure.
With 490 students, its enrollment sits close to the Texas median campus size.
Its Resource Investment Index lands in the upper third of 8,960 scored Texas schools.
Against 1,825 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #355.
Its student body is led by Hispanic or Latino (59%) and White (16%) (diversity index 60/100).
Counselor coverage is strong, about 163 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 42.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Discipline events run high: 187 in- and out-of-school suspensions were reported for 490 students in the 2021-22 Civil Rights Data Collection.
The federal civil-rights collection also records 1 expulsion at this campus for 2021-22.
Plano Isd also operates Plano East Sr H S (3,033 students) and Plano West Senior H S (2,559 students) alongside Armstrong Middle.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Armstrong Middle compares
Armstrong Middle on the metrics families compare, against Texas and U.S. means.
| Metric | This school | vs Texas | Texas avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 11.7:1 | ▼ 20% | 14.7:1 | 15.7:1 |
| Free-lunch eligible | 71.7% | ▲ 16% | 61.9% | 51.7% |
| Enrollment | 490 | top 51% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11.7:1
Leaner classes than 78% of US schools, among the more generously staffed nationally.
490
Bigger than 60% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
71.7%
free-lunch eligible
- 16% above the Texas average of 61.9%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
11.7:1
students per teacher
- 20% below state mean
Top 21% in Texas - lower ratio than 79% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
42.7%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$11,203
per pupil, district-wide
- below Texas avg of $13,644
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors3.0 FTE
Per 163 students, the combined health-and-guidance staffing load for this school.
Discipline context
88
in-school suspensions + 99 out-of-school
Suspension rate: 18.0 per 100 students. Combined in-school and out-of-school rate: 38.2 per 100 students. Reported via the Civil Rights Data Collection. Includes 1 expulsion.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
Hispanic or Latino 59.2%
White 15.9%
African American 15.5%
Asian 6.9%
Two or More 2.0%
Native Hawaiian / Pacific Islander 0.4%
Largest group: Hispanic or Latino at 59.2% of enrollment.
Student-body diversity index 59.5/100
Simpson diversity index - at 59.5, Armstrong Middle is more mixed than the Texas school average of 44.7.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Plano Isd, which includes Armstrong Middle.
$11,203
Per student
-18%
vs Texas
Avg $13,644
-32%
vs U.S.
Avg $16,593
Revenue mix
Local 80.7%
State 7.3%
Federal 12.0%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Armstrong Middle Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Plano East Sr H S | Larger | Lower economic need | Higher S:T ratio |
| Plano West Senior H S | Larger | Lower economic need | Higher S:T ratio |
| Plano Sr H S | Larger | Lower economic need | Higher S:T ratio |
| Shepton H S | Larger | Lower economic need | Higher S:T ratio |
| Jasper H S | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Armstrong Middle's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 3,033
- Students per teacher
- 17:1
- Resource Index
- 45/100
- Enrollment
- 2,559
- Students per teacher
- 17.2:1
- Resource Index
- 46/100
- Enrollment
- 2,267
- Students per teacher
- 15.7:1
- Resource Index
- 46/100
- Enrollment
- 1,360
- Students per teacher
- 14.8:1
- Resource Index
- 43/100
- Enrollment
- 1,301
- Students per teacher
- 17.6:1
- Resource Index
- 54/100
Similar middle schools statewide
Matched by enrollment size and by staffing ratio across all of Texas, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~490 students)
Similar student-teacher ratio (~11.7:1)
Next steps
Verify locally before acting on Armstrong Middle's federal record.
- Compare Armstrong Middle against another school. Compare schools
- Plano Isd's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Armstrong Middle
How many students attend Armstrong Middle?
Armstrong Middle has 490 students enrolled. It is a middle school in Plano, TX.
What is the student-teacher ratio at Armstrong Middle?
The student-teacher ratio at Armstrong Middle is 11.7:1, which is 20% lower than the Texas average of 14.7:1 and 25% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Armstrong Middle?
71.7% of students at Armstrong Middle are eligible for free lunch, compared to the Texas average of 61.9%.
What is the racial and ethnic makeup of Armstrong Middle?
The largest demographic group at Armstrong Middle is Hispanic or Latino at 59.2% of enrollment, in Plano, TX. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 59.5/100.
What is the Resource Investment Index for Armstrong Middle?
Armstrong Middle has a Resource Investment Index of 48/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Armstrong Middle rank among middle schools in Plano?
By Resource Investment Index, Armstrong Middle ranks #10 of 12 middle schools in Plano, TX. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Plano on the city page.
Is Armstrong Middle a good school?
Armstrong Middle earns 48/100 on the Resource Investment Index, with class sizes smaller than 79% of Texas schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Plano Isd?
Besides Armstrong Middle, Plano Isd also operates Plano East Sr H S (3,033 students), Plano West Senior H S (2,559 students), and Plano Sr H S (2,267 students). See the Plano Isd district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.