Enrollment
1,840
Minnesota · 2024-25 NCES data
2024-25 NCES data High school (grades 9-12) NCES 273178001318
Robbinsdale Armstrong Senior High — Plymouth, MN
Federal NCES profile for Robbinsdale Armstrong Senior High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 41/100.
👥 Class size 0
📚 AP courses 75
🌟 Gifted program 70
🎓 Counselors 26
📋 Attendance 32
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: Robbinsdale Public School District · Minnesota
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
60.0
Federal CCD staff survey
Students per teacher
30.5:1
vs 15.9:1 Minnesota avg
+92% vs state
Free-lunch eligible
38.3%
vs 42.8% Minnesota avg
-11% vs state
Student-teacher ratio in context
How Robbinsdale Armstrong Senior High compares with Minnesota and U.S. medians
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Robbinsdale Armstrong Senior High reports 1,840 enrolled students to the National Center for Education Statistics (NCES) alongside 60.0 full-time-equivalent teachers, producing a 30.5:1 student-teacher ratio. That figure sits 92% above the Minnesota state mean of 15.9:1, signalling larger average class loads than peers in the same state. Against the national 2024-25 average of 15.9:1, it is 92% higher, a useful calibration for families comparing districts across state lines.
Title I and federal lunch eligibility offer another window into the student body: 38.3% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 11% below the Minnesota average and 26% below the national baseline. The school offers 15 Advanced Placement courses, a stronger academic pipeline indicator than enrollment alone. Counselor coverage works out to roughly 368 students per counselor, above the ASCA-recommended ceiling of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 27.4% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding Robbinsdale Public School District spends $19,907 per pupil district-wide, below the Minnesota average of $21,113 and above the national average of $19,490. Revenue comes 33.0% from local sources (property taxes), 55.0% from the state, and 12.0% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 41/100 (D), calculated from 5 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Robbinsdale Armstrong Senior High compares
Cross-validating school-level NCES values against Minnesota state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs Minnesota | Minnesota avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 30.5:1 | ▲ 92% | 15.9:1 | 15.9:1 |
| Free-lunch eligible | 38.3% | ▼ 11% | 42.8% | 51.8% |
| Enrollment | 1,840 | top 98% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Economic need
38.3%
free-lunch eligible
— 11% below the Minnesota average of 42.8%
Below the 40% Title I threshold — federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
30.5:1
students per teacher
— 92% above state mean
Top 96% in Minnesota — lower ratio than 4% of state schools
Above 20:1 — larger class loads than the typical U.S. public school; staffing is stretched relative to enrollment.
Engagement
27.4%
chronically absent (missed 10%+ of school days)
Chronic absenteeism at or above 20% — the CDC threshold for "high" — signals significant barriers to regular attendance.
Funding equity
$19,907
per pupil, district-wide
— below Minnesota avg of $21,113
Above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors5.0 FTE
Per 368 students — the combined health-and-guidance staffing load for this school.
Discipline context
4
in-school suspensions + 107 out-of-school
Suspension rate: 0.2 per 100 students. Combined in-school and out-of-school rate: 6.0 per 100 students. Reported via the Civil Rights Data Collection.
Overview
Enrollment 1,840 Top 98% in Minnesota — larger than 2% of 2,391 state schools
Teachers (FTE) 60.0
Students per teacher 30.5:1 +92% vs state
Free-lunch eligible 38.3% -11% vs state
NCES ID 273178001318
Student demographics
White 44.6%
African American 25.2%
Hispanic or Latino 14.7%
Two or More 9.0%
Asian 5.7%
American Indian / Alaska Native 0.8%
Native Hawaiian / Pacific Islander 0.1%
Largest group: White at 44.6% of enrollment.
Programs & staff
AP courses offered 15
Gifted & talented Yes
Counselors (FTE) 5.0
Students per counselor 368:1
Discipline & special education
Chronically absent 27.4%
In-school suspensions 4
Out-of-school suspensions 107
Funding & spending
District-wide per-pupil expenditure for Robbinsdale Public School District, which includes Robbinsdale Armstrong Senior High.
$19,907
Per student
-6%
vs Minnesota
Avg $21,113
+2%
vs U.S.
Avg $19,490
Revenue mix
Local 33.0%
State 55.0%
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.
Other Schools in This District
- Enrollment
- 1,396
- Students per teacher
- 28.1:1
- Enrollment
- 749
- Students per teacher
- 29.9:1
- Enrollment
- 733
- Students per teacher
- 20:1
- Enrollment
- 567
- Students per teacher
- 20.4:1
- Enrollment
- 488
- Students per teacher
- 14.7:1
Similar high schools in Plymouth
4 comparable high schools (grades 9-12) serving the same city.
Wayzata High
Standard public school
3,781 students 22.9:1 students per teacher
The Alternative Program (Tap)
Alternative education program
142 students 78:1 students per teacher
Wayzata Transition School
Special-education school
37 students 7.5:1 students per teacher
School #519
Alternative education program
1 students 1:1 students per teacher
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
Frequently asked questions about Robbinsdale Armstrong Senior High
How many students attend Robbinsdale Armstrong Senior High?
Robbinsdale Armstrong Senior High has 1,840 students enrolled. It is a high school in PLYMOUTH, MN.
What is the student-teacher ratio at Robbinsdale Armstrong Senior High?
The student-teacher ratio at Robbinsdale Armstrong Senior High is 30.5:1, which is 92% higher than the Minnesota average of 15.9:1 and 92% higher than the national average of 15.9:1.
What percentage of students receive free lunch at Robbinsdale Armstrong Senior High?
38.3% of students at Robbinsdale Armstrong Senior High are eligible for free lunch, compared to the Minnesota average of 42.8%.
What is the racial and ethnic makeup of Robbinsdale Armstrong Senior High?
The largest demographic group at Robbinsdale Armstrong Senior High is White at 44.6%. The school serves a diverse student body in PLYMOUTH, MN.
What is the Resource Investment Index for Robbinsdale Armstrong Senior High?
Robbinsdale Armstrong Senior High has a Resource Investment Index of 41/100 (D) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.