Enrollment
396
Oregon · 2024-25 NCES data
Elementary school (grades K-5) · Milwaukie, OR
Ardenwald Elementary School
Federal NCES profile for Ardenwald Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 37/100.
2024-25 NCES dataElementary school (grades K-5)NCES 410883000070
👥 S:T ratio 24
🌟 Gifted program 70
📋 Attendance 16
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Ardenwald Elementary School earns 37/100 on the Resource Investment Index, with class sizes near the Oregon median.
- #3 of 11
- elementary schools in Milwaukie · Resource Index
- 37
- Resource Index · Typical
- 18.9:1
- students per teacher
- 69.5%
- free-lunch eligible
Ardenwald Elementary School has class sizes near the Oregon median. Computed live against every Oregon school reporting to NCES.
By Resource Investment Index, Ardenwald Elementary School ranks #3 of 11 elementary schools in Milwaukie, OR.
School address
District: North Clackamas Sd 12 · Oregon
NCES ID 410883000070 Verify on NCES CCD record →
Teachers (FTE)
21.0
Federal CCD staff survey
Students per teacher
18.9:1
vs 17.6:1 Oregon avg
+7% vs state
Free-lunch eligible
69.5%
vs 52.8% Oregon avg
+32% vs state
Student-teacher ratio in context
How Ardenwald Elementary School compares with Oregon and U.S. medians
What stands out at Ardenwald Elementary School
Ardenwald Elementary School is a higher-need, mid-sized elementary school in Milwaukie, Oregon, enrolling 396 students.
Class loads run somewhat heavier than typical: 18.9:1 puts it in the larger third of Oregon schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 69.5% of students eligible for free meals.
With 396 students, its enrollment sits close to the Oregon median campus size.
Its Resource Investment Index sits near the middle of the pack among 1,273 scored Oregon schools.
Against 329 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #103.
Its student body is led by White (64%) and Hispanic or Latino (19%) (diversity index 54/100).
Chronic absenteeism is elevated: 33.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Milwaukie's elementary schools, it stands alongside Whitcomb Elementary School (415 students): Ardenwald Elementary School is smaller than that campus by headcount and runs heavier classes (18.9:1 vs 18:1).
North Clackamas Sd 12 also operates Adrienne C. Nelson High School (1,536 students) and Clackamas High School (1,280 students) alongside Ardenwald Elementary School.
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 Ardenwald Elementary School compares
Ardenwald Elementary School on the metrics families compare, against Oregon and U.S. means.
| Metric | This school | vs Oregon | Oregon avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 18.9:1 | ▲ 7% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 69.5% | ▲ 32% | 52.8% | 51.7% |
| Enrollment | 396 | top 39% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
18.9:1
Leaner classes than 20% of US schools, heavier class loads than most.
396
Bigger than 47% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
69.5%
free-lunch eligible
- 32% above the Oregon average of 52.8%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
18.9:1
students per teacher
- 7% above state mean
Top 68% in Oregon - lower ratio than 32% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
33.6%
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
$14,929
per pupil, district-wide
- below Oregon avg of $18,086
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 17 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 4.3 per 100 students. Reported via the Civil Rights Data Collection.
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
White 64.0%
Hispanic or Latino 19.3%
Two or More 12.4%
African American 1.8%
Asian 1.8%
American Indian / Alaska Native 0.8%
Largest group: White at 64.0% of enrollment.
Student-body diversity index 53.7/100
Simpson diversity index - at 53.7, Ardenwald Elementary School is more mixed than the Oregon school average of 47.1.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for North Clackamas Sd 12, which includes Ardenwald Elementary School.
$14,929
Per student
-17%
vs Oregon
Avg $18,086
-10%
vs U.S.
Avg $16,593
Revenue mix
Local 46.9%
State 45.8%
Federal 7.4%
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 Ardenwald Elementary School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Adrienne C. Nelson High School | Larger | Lower economic need | Higher S:T ratio |
| Clackamas High School | Larger | Lower economic need | Higher S:T ratio |
| Happy Valley Middle School | Larger | Lower economic need | Higher S:T ratio |
| Putnam High School | Larger | Lower economic need | Higher S:T ratio |
| Rock Creek Middle School | Larger | Lower economic need | Similar S:T ratio |
Comparisons are relative to Ardenwald Elementary School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,536
- Students per teacher
- 30.1:1
- Resource Index
- 39/100
- Enrollment
- 1,280
- Students per teacher
- 26.1:1
- Resource Index
- 24/100
- Enrollment
- 1,158
- Students per teacher
- 24.6:1
- Resource Index
- 39/100
- Enrollment
- 1,060
- Students per teacher
- 24.1:1
- Resource Index
- 25/100
- Enrollment
- 889
- Students per teacher
- 19.8:1
- Resource Index
- 38/100
Similar elementary schools in Milwaukie
6 comparable elementary schools (grades K-5) serving the same city.
Whitcomb Elementary School
Standard public school
415 students 18:1 students per teacher
Milwaukie El Puente Elementary School
Standard public school
408 students 16.3:1 students per teacher
Bilquist Elementary School
Standard public school
373 students 18.6:1 students per teacher
View Acres Elementary School
Standard public school
367 students 19.3:1 students per teacher
Candy Lane Elementary School
Standard public school
363 students 24.2:1 students per teacher
Riverside Elementary School
Standard public school
311 students 17.3:1 students per teacher
Similar elementary schools statewide
Matched by enrollment size and by staffing ratio across all of Oregon, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~396 students)
Next steps
Verify locally before acting on Ardenwald Elementary School's federal record.
- Compare Ardenwald Elementary School against another school. Compare schools
- North Clackamas Sd 12'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 Ardenwald Elementary School
How many students attend Ardenwald Elementary School?
Ardenwald Elementary School has 396 students enrolled. It is an elementary school in Milwaukie, OR.
What is the student-teacher ratio at Ardenwald Elementary School?
The student-teacher ratio at Ardenwald Elementary School is 18.9:1, which is 7% higher than the Oregon average of 17.6:1 and 20% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Ardenwald Elementary School?
69.5% of students at Ardenwald Elementary School are eligible for free lunch, compared to the Oregon average of 52.8%.
What is the racial and ethnic makeup of Ardenwald Elementary School?
The largest demographic group at Ardenwald Elementary School is White at 64.0% of enrollment, in Milwaukie, OR. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 53.7/100.
What is the Resource Investment Index for Ardenwald Elementary School?
Ardenwald Elementary School has a Resource Investment Index of 37/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Ardenwald Elementary School rank among elementary schools in Milwaukie?
By Resource Investment Index, Ardenwald Elementary School ranks #3 of 11 elementary schools in Milwaukie, OR. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Milwaukie on the city page.
Is Ardenwald Elementary School a good school?
Ardenwald Elementary School earns 37/100 on the Resource Investment Index, with class sizes near the Oregon median. 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 North Clackamas Sd 12?
Besides Ardenwald Elementary School, North Clackamas Sd 12 also operates Adrienne C. Nelson High School (1,536 students), Clackamas High School (1,280 students), and Happy Valley Middle School (1,158 students). See the North Clackamas Sd 12 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.