- Enrollment
- 1,396
- Students per teacher
- 24.1:1
- Resource Index
- 23/100
High school (grades 9-12) · Plymouth, MN
Robbinsdale Armstrong Senior High
Federal NCES profile for Robbinsdale Armstrong Senior High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 32/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 273178001318
👥 S:T ratio 0
🌟 Gifted program 70
🎓 Counselors 26
📋 Attendance 32
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Robbinsdale Armstrong Senior High earns 32/100 on the Resource Investment Index, with class sizes larger than 95% of Minnesota schools. It is also one of the largest schools in Minnesota.
- #4 of 5
- high schools in Plymouth · Resource Index
- 32
- Resource Index · Typical
- 30.7:1
- large classes for Minnesota
- 38.3%
- free-lunch eligible
Robbinsdale Armstrong Senior High has class sizes larger than 95% of Minnesota schools. Computed live against every Minnesota school reporting to NCES.
By Resource Investment Index, Robbinsdale Armstrong Senior High ranks #4 of 5 high schools in Plymouth, MN.
School address
District: Robbinsdale Public School District · Minnesota
NCES ID 273178001318 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-48 students YoY
Robbinsdale Armstrong Senior High held near 1,784 students from 2022-23 to 2023-24 (-48 headcount).
Teacher FTE added 60.5 → 77.5 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-48 students YoY 273178001318 · Plymouth, MN High · MID · TRAD
1,840 enr · 30.7:1 · 38.3% lunch · RII 32
Nearest enrollment peer: Robbinsdale Cooper Senior High (1,396 students)
Robbinsdale Armstrong Senior High held near 1,784 students from 2022-23 to 2023-24 (-48 headcount). Teacher FTE added 60.5 → 77.5 across the same CCD years. Read with this school → · District book → · Minnesota schools → · Find another →
Robbinsdale Armstrong Senior High in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- This school
Robbinsdale Armstrong Senior High
1,840 students
- Robbinsdale Co
Robbinsdale Cooper Senior High
1,396 students
- Plymouth Middl
Plymouth Middle
749 students
- Robbinsdale Sp 733
Robbinsdale Spanish Immersion El.
733 students
- Robbinsdale Mi 567
Robbinsdale Middle
567 students
- Meadow Lake El 488
Meadow Lake Elementary
488 students
What this shows Robbinsdale Armstrong Senior High reports 1,840 students on the CCD universe file.
How Robbinsdale Armstrong Senior High compares
Robbinsdale Armstrong Senior High held steady on CCD headcount: ratios and free-lunch share vs Minnesota and U.S. means.
| Metric | This school | vs Minnesota | Minnesota avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 30.7:1 | ▲ 94% | 15.8:1 | 15.7:1 |
| Free-lunch eligible | 38.3% | ▼ 11% | 42.8% | 51.7% |
| Enrollment | 1,840 | top 2% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
30.7:1
Leaner classes than 2% of US schools, heavier class loads than most.
1,840
Bigger than 98% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
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
30.7:1
students per teacher
- 94% above state mean
Top 95% in Minnesota - lower ratio than 5% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
27.4%
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
$17,779
per pupil, district-wide
- above Minnesota avg of $15,919
Close to the U.S. public-school average per-pupil spend.
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.
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.
Student-body diversity index 70.5/100
Simpson diversity index - at 70.5, Robbinsdale Armstrong Senior High is more mixed than the Minnesota school average of 42.8.
Programs
AP courses offered 15
Gifted & talented Yes
District finance for Robbinsdale Public School District reports $17,779 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Robbinsdale Armstrong Senior High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Robbinsdale Cooper Senior High | Similar size | Higher economic need | Lower S:T ratio |
| Plymouth Middle | Smaller | Similar economic need | Lower S:T ratio |
| Robbinsdale Spanish Immersion El. | Smaller | Lower economic need | Lower S:T ratio |
| Robbinsdale Middle | Smaller | Higher economic need | Lower S:T ratio |
| Meadow Lake Elementary | Smaller | Higher economic need | Lower S:T ratio |
Comparisons are relative to Robbinsdale Armstrong Senior High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 749
- Students per teacher
- 26.8:1
- Resource Index
- 35/100
- Enrollment
- 733
- Students per teacher
- 20.9:1
- Resource Index
- 55/100
- Enrollment
- 567
- Students per teacher
- 18.3:1
- Resource Index
- 40/100
- Enrollment
- 488
- Students per teacher
- 13.9:1
- Resource Index
- 51/100
Nationwide high schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~1,840 students)
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. CCD year-over-year: 1,832 (2022-23) → 1,784 (2023-24), nearly flat (-48).
What is the student-teacher ratio at Robbinsdale Armstrong Senior High?
The student-teacher ratio at Robbinsdale Armstrong Senior High is 30.7:1, which is 94% higher than the Minnesota average of 15.8:1 and 96% higher than the national average of 15.7:1.
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% of enrollment, in Plymouth, MN. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 70.5/100.
What is the Resource Investment Index for Robbinsdale Armstrong Senior High?
Robbinsdale Armstrong Senior High has a Resource Investment Index of 32/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Robbinsdale Armstrong Senior High rank among high schools in Plymouth?
By Resource Investment Index, Robbinsdale Armstrong Senior High ranks #4 of 5 high schools in Plymouth, MN. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Plymouth on the city page.
What other schools are in Robbinsdale Public School District?
Besides Robbinsdale Armstrong Senior High, Robbinsdale Public School District also operates Robbinsdale Cooper Senior High (1,396 students), Plymouth Middle (749 students), and Robbinsdale Spanish Immersion El. (733 students). See the Robbinsdale Public School District district page for the complete list.