- Enrollment
- 2,072
- Students per teacher
- 44.1:1
- Resource Index
- 41/100
Other / mixed grade configuration · Cottage Grove, MN
Armstrong Elementary
Federal NCES profile for Armstrong Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 63/100.
2024-25 NCES dataOther / mixed grade configurationNCES 273381001537
👥 S:T ratio 55
🌟 Gifted program 70
📋 Attendance 64
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Armstrong Elementary earns 63/100 on the Resource Investment Index, with class sizes smaller than 76% of Minnesota schools. It is also more racially and ethnically mixed than most Minnesota schools.
- #1 of 4
- schools in Cottage Grove · Resource Index
- 63
- Resource Index · Higher
- 11.2:1
- small classes for Minnesota
- 32.6%
- free-lunch eligible
Armstrong Elementary has class sizes smaller than 76% of Minnesota schools. Computed live against every Minnesota school reporting to NCES.
By Resource Investment Index, Armstrong Elementary ranks #1 of 4 schools in Cottage Grove, MN.
School address
District: South Washington County Schools · Minnesota
NCES ID 273381001537 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-14 students YoY
Armstrong Elementary held near 308 students from 2022-23 to 2023-24 (-14 headcount).
Teacher FTE lost 29.5 → 29.1 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-14 students YoY 273381001537 · Cottage Grove, MN Other · SMALL · TRAD
325 enr · 11.2:1 · 32.6% lunch · RII 63
Nearest enrollment peer: East Ridge High School (2,072 students)
Armstrong Elementary held near 308 students from 2022-23 to 2023-24 (-14 headcount). Teacher FTE lost 29.5 → 29.1 across the same CCD years. Read with this school → · District book → · Minnesota schools → · Find another →
Armstrong Elementary in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- East Ridge Hig
East Ridge High School
2,072 students
- Park High Scho
Park High School
1,992 students
- Woodbury High
Woodbury High School
1,943 students
- Lake Middle Sc
Lake Middle School
1,165 students
- Woodbury Middl
Woodbury Middle School
1,160 students
- This school 325
Armstrong Elementary
325 students
What this shows Armstrong Elementary reports 325 students on the CCD universe file.
How Armstrong Elementary compares
Armstrong Elementary 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 | 11.2:1 | ▼ 29% | 15.8:1 | 15.7:1 |
| Free-lunch eligible | 32.6% | ▼ 24% | 42.8% | 51.7% |
| Enrollment | 325 | top 44% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11.2:1
Leaner classes than 82% of US schools, among the more generously staffed nationally.
325
Bigger than 36% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
32.6%
free-lunch eligible
- 24% 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
11.2:1
students per teacher
- 29% below state mean
Top 24% in Minnesota - lower ratio than 76% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
14.5%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
Funding equity
$13,992
per pupil, district-wide
- below Minnesota avg of $15,919
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
2
in-school suspensions + 2 out-of-school
Suspension rate: 0.6 per 100 students. Combined in-school and out-of-school rate: 1.2 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 53.2%
Asian 13.2%
Hispanic or Latino 12.0%
Two or More 11.1%
African American 10.2%
American Indian / Alaska Native 0.3%
Largest group: White at 53.2% of enrollment.
Student-body diversity index 66.2/100
Simpson diversity index - at 66.2, Armstrong Elementary is more mixed than the Minnesota school average of 42.8.
Programs
Gifted & talented Yes
District finance for South Washington County Schools reports $13,992 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Armstrong Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| East Ridge High School | Larger | Lower economic need | Higher S:T ratio |
| Park High School | Larger | Similar economic need | Higher S:T ratio |
| Woodbury High School | Larger | Lower economic need | Higher S:T ratio |
| Lake Middle School | Larger | Lower economic need | Higher S:T ratio |
| Woodbury Middle School | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Armstrong Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,992
- Students per teacher
- 36.2:1
- Resource Index
- 32/100
- Enrollment
- 1,943
- Students per teacher
- 43.2:1
- Resource Index
- 37/100
- Enrollment
- 1,165
- Students per teacher
- 53:1
- Resource Index
- 41/100
- Enrollment
- 1,160
- Students per teacher
- 38.7:1
- Resource Index
- 38/100
Nationwide other 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 (~325 students)
Frequently asked questions about Armstrong Elementary
How many students attend Armstrong Elementary?
Armstrong Elementary has 325 students enrolled. It is a public school in Cottage Grove, MN. CCD year-over-year: 322 (2022-23) → 308 (2023-24), nearly flat (-14).
What is the student-teacher ratio at Armstrong Elementary?
The student-teacher ratio at Armstrong Elementary is 11.2:1, which is 29% lower than the Minnesota average of 15.8:1 and 29% 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 Elementary?
32.6% of students at Armstrong Elementary are eligible for free lunch, compared to the Minnesota average of 42.8%.
What is the racial and ethnic makeup of Armstrong Elementary?
The largest demographic group at Armstrong Elementary is White at 53.2% of enrollment, in Cottage Grove, MN. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 66.2/100.
What is the Resource Investment Index for Armstrong Elementary?
Armstrong Elementary has a Resource Investment Index of 63/100 (higher reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Armstrong Elementary rank among schools in Cottage Grove?
By Resource Investment Index, Armstrong Elementary ranks #1 of 4 schools in Cottage Grove, MN. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Cottage Grove on the city page.
What other schools are in South Washington County Schools?
Besides Armstrong Elementary, South Washington County Schools also operates East Ridge High School (2,072 students), Park High School (1,992 students), and Woodbury High School (1,943 students). See the South Washington County Schools district page for the complete list.