Enrollment
325
Elementary
DISTRICT 532 · STATE 344
SCHOOL COMMUNITY·SOUTH WASHINGTON COUNTY SCHOOLS·NCES 273381001537
ARMSTRONG ELEMENTARY
8855 INWOOD AVE S, COTTAGE GROVE, MN 55016 · (651) 425-4101 · Washington County
GRADES PK–05ELEMENTARY21-SUBURBREGULAR SCHOOL325 STUDENTS
Student : Teacher
11.6:1
28 FTE teachers
DISTRICT 16.0:1 · STATE 13.7:1
Free / Reduced Lunch
37%
121 students
DISTRICT 28% · STATE 48%
Community
0
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Kindergarten | 56 | 17% |
| Grade 1 | 52 | 16% |
| Grade 2 | 54 | 17% |
| Grade 3 | 59 | 18% |
| Grade 4 | 56 | 17% |
| Grade 5 | 48 | 15% |
Student demographics
66%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 63% · STATE 60% · 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
Test scores
MCA 2024-25 . % Meets or Exceeds StandardsEnglish Language Arts
40.4%
MN avg 49.7%
Math
55.9%
MN avg 45.3%
What this means: On the MCA, Minnesota's statewide test, about 40 of every 100 students at this school read and write at grade level and about 56 of 100 do math at grade level. Across all Minnesota schools, those numbers are about 50 and 45.
Source: MCA. 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
38.9%
composite math + reading, all grades
Predicted
45.1%
based on MN schools with similar FRL share
Beats by
-6.2pp
below demographic expectation
What this means: About 39% of students here test proficient in math and reading, compared with the roughly 45% typical for Minnesota 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 Minnesota'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 →
Where ARMSTRONG ELEMENTARY ranks
Among elementary schools| Measure | This school | In Minnesota | In Washington County |
|---|---|---|---|
| State test proficiency ranked highest first | 38.9% | #553 of 844 | #28 of 35 |
| Math proficiency ranked highest first | 55.9% | #340 of 844 | #19 of 35 |
| Reading proficiency ranked highest first | 40.4% | #574 of 844 | #30 of 35 |
| Enrollment ranked largest first | 325 | #602 of 1,130 | #32 of 42 |
| Students per teacher ranked fewest first | 11.6:1 | #146 of 769 | #4 of 36 |
| Diversity index ranked most diverse first | 66.2% | #194 of 796 | #8 of 36 |
| Free and reduced lunch ranked highest share first | 37.2% | #558 of 942 | #9 of 38 |
| Enrollment change since 2017-18 ranked steepest decline first | -3.6% | #437 of 499 | #15 of 17 |
Ranked against other public elementary 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.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
325
-6 (-2%) vs 2020
-62% since 1990-91, when it was 857
Student : Teacher
11.6:1
was 10.3:1
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 | 325 | 28.1 | 11.6:1 | 37% (121) |
| 2023-24 | 308 | 29.1 | 10.6:1 | 40% (124) |
| 2022-23 | 322 | 29.5 | 10.9:1 | 41% (131) |
| 2020-21 | 331 | 32 | 10.3:1 | 26% (86) |
| 2017-18 | 337 | 31.5 | 10.7:1 | 36% (122) |
| 2015-16 | 323 | 27 | 12.0:1 | 35% (114) |
| 2010-11 | 387 | 30 | 12.9:1 | 23% (88) |
| 2000-01 | 663 | 39 | 17.0:1 | 11% (70) |
| 1990-91 | 857 | 44 | 19.5:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for ARMSTRONG ELEMENTARY.
About ARMSTRONG ELEMENTARY
ARMSTRONG ELEMENTARY is a medium-sized elementary school with its address in COTTAGE GROVE, Minnesota. Enrollment in 2024-25 was 325 students in pre-K through 5.
South Washington County Schools is the local district for ARMSTRONG ELEMENTARY. It runs 28 schools with 19,578 students.
White students are the majority at ARMSTRONG ELEMENTARY, with 53% of enrollment. The school is also 13% Asian, 12% Hispanic, 11% multiracial, and 10% Black. The White share of the county population is higher, at 78%. The school's diversity index is 66%, meaning two students picked at random have a 66% chance of belonging to different racial or ethnic groups.
ARMSTRONG ELEMENTARY's 28.1 full-time-equivalent teachers put its ratio at 11.6:1. That is lower than the 13.7:1 average for elementary schools in Minnesota. Eligibility for subsidized school meals is 37%. The gap from the 26% average for public schools in Washington County is 11 points.
Given its share of students eligible for free or reduced-price lunch, ARMSTRONG ELEMENTARY would be expected to post about 45.1%. Its actual average proficiency rate on state tests is 38.9%.
In Washington County (population about 276,238), the median household income is $115,345, a bachelor's degree or higher is held by about 49% of adults, and the poverty rate is about 4%. There are 103 public schools in Washington County, enrolling about 46,313 students in all.
Great Rivers Adult Education is located about 0.2 miles from ARMSTRONG ELEMENTARY. Around the school, at least 8 other public schools are within five miles. On proficiency, ARMSTRONG ELEMENTARY is ahead of the 36.9% nearby average, ranking 2nd of 5.
Its NCES locale code is Suburb: Large: the school is in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.
In 2020-21, ARMSTRONG ELEMENTARY enrolled 331; in 2024-25, 325. The student-to-teacher ratio went up from 10.3:1 to 11.6:1.
The discussion area below is open to posts about sports tryouts, band and choir, and theater. Questions from prospective families are welcome too.
Washington County at a glance
View full county profilePopulation
276,238
Census ACS
Median income
$115,345
Household, ACS
Bachelor's+
49%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
103
46,313 students
Quick facts
Related schools
Other schools in South Washington County Schools
- EAST RIDGE HIGH SCHOOLHigh · 2,072 students
- Park High SchoolHigh · 1,992 students
- Woodbury High SchoolHigh · 1,943 students
- LAKE MIDDLE SCHOOLMiddle · 1,165 students
- WOODBURY MIDDLE SCHOOLMiddle · 1,160 students
- COTTAGE GROVE MIDDLE SCHOOLMiddle · 1,005 students
Other schools in COTTAGE GROVE
- Park High SchoolHigh · 1,992 students
- COTTAGE GROVE MIDDLE SCHOOLMiddle · 1,005 students
- OLTMAN MIDDLE SCHOOLMiddle · 956 students
- GREY CLOUD ELEMENTARYElementary · 797 students
- Ages 3-5 Early Childhood Special EdElementary · 591 students
- PINE HILL ELEMENTARYElementary · 502 students
Nearby schools
- Great Rivers Adult Education0.2 mi · 7
- South Washington Alternative HS0.2 mi · 97
- Ages 3-5 Early Childhood Special Ed0.2 mi · 591
- HILLSIDE ELEMENTARY0.5 mi · 417
- Park High School1.0 mi · 1,992
- CRESTVIEW ELEMENTARY1.2 mi · 425
Frequently asked questions
About ARMSTRONG ELEMENTARYHow many students attend ARMSTRONG ELEMENTARY?
ARMSTRONG ELEMENTARY enrolls approximately 325 students in grades PK-05.
Is ARMSTRONG ELEMENTARY an elementary, middle, or high school?
ARMSTRONG ELEMENTARY is an elementary school covering grades PK-05.
How many teachers does ARMSTRONG ELEMENTARY have?
ARMSTRONG ELEMENTARY employs 28 FTE teachers, for a student-to-teacher ratio of 11.6:1.
How diverse is ARMSTRONG ELEMENTARY?
ARMSTRONG ELEMENTARY reports a student body of 53% White, 12% Hispanic, 10% Black, 13% Asian, 11% Two or more.
What district is ARMSTRONG ELEMENTARY in?
ARMSTRONG ELEMENTARY is part of South Washington County Schools.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.