Enrollment
406
Oregon · 2024-25 NCES data
Elementary school (grades K-5) · Portland, OR
Riverdale Grade School
Federal NCES profile for Riverdale Grade School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 36/100.
2024-25 NCES dataElementary school (grades K-5)NCES 411056001039
👥 S:T ratio 38
🌟 Gifted program 30
🎓 Counselors 19
📋 Attendance 59
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Riverdale Grade School earns 36/100 on the Resource Investment Index, with class sizes near the Oregon median.
- #66 of 87
- elementary schools in Portland · Resource Index
- 36
- Resource Index · Typical
- 15.6:1
- students per teacher
- 406
- students enrolled
Riverdale Grade School has class sizes near the Oregon median. Computed live against every Oregon school reporting to NCES.
By Resource Investment Index, Riverdale Grade School ranks #66 of 87 elementary schools in Portland, OR.
School address
District: Riverdale Sd 51j · Oregon
NCES ID 411056001039 Verify on NCES CCD record →
Teachers (FTE)
26.0
Federal CCD staff survey
Students per teacher
15.6:1
vs 17.6:1 Oregon avg
-11% vs state
Student-teacher ratio in context
How Riverdale Grade School compares with Oregon and U.S. medians
What stands out at Riverdale Grade School
Riverdale Grade School is a mid-sized elementary school in Portland, Oregon, enrolling 406 students.
Class sizes run a bit leaner than typical: 15.6:1 puts it in the smaller third of Oregon schools by student-teacher ratio.
With 406 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.
Its student body is led by White (77%) and Two or More (13%) (diversity index 38/100).
Counselor access is stretched at roughly 406 students per counselor, well above the ASCA-recommended 250:1 ceiling.
16.3% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Among Portland's elementary schools, it stands alongside Sato Elementary School (863 students): Riverdale Grade School is smaller than that campus by headcount and runs leaner classes (15.6:1 vs 22.1:1).
Its district, Riverdale Sd 51j, also runs Riverdale High School (159 students).
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 Riverdale Grade School compares
Riverdale Grade 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 | 15.6:1 | ▼ 11% | 17.6:1 | 15.7:1 |
| Enrollment | 406 | top 37% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
15.6:1
Leaner classes than 41% of US schools, a middle-of-the-pack class size.
406
Bigger than 48% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
15.6:1
students per teacher
- 11% below state mean
Top 33% in Oregon - lower ratio than 67% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
16.3%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$19,400
per pupil, district-wide
- above Oregon avg of $18,086
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors1.0 FTE
Per 406 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 1 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.2 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 77.3%
Two or More 12.8%
Hispanic or Latino 5.9%
Asian 3.7%
African American 0.2%
Largest group: White at 77.3% of enrollment.
Student-body diversity index 38.1/100
Simpson diversity index - at 38.1, Riverdale Grade School is less mixed than the Oregon school average of 47.1.
Programs
Funding & spending
District-wide per-pupil expenditure for Riverdale Sd 51j, which includes Riverdale Grade School.
$19,400
Per student
+7%
vs Oregon
Avg $18,086
+17%
vs U.S.
Avg $16,593
Revenue mix
Local 65.5%
State 32.4%
Federal 2.1%
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 Riverdale Grade School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Riverdale High School | Smaller | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Riverdale Grade School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 159
- Students per teacher
- 10.6:1
- Resource Index
- 57/100
Similar elementary schools in Portland
6 comparable elementary schools (grades K-5) serving the same city.
Sato Elementary School
Standard public school
863 students 22.1:1 students per teacher
Springville K-8 School
Standard public school
742 students 19:1 students per teacher
Laurelhurst Elementary School
Standard public school
660 students 22:1 students per teacher
Jacob Wismer Elementary School
Standard public school
592 students 20.4:1 students per teacher
Ainsworth Elementary School
Standard public school
587 students 21:1 students per teacher
Findley Elementary
Standard public school
549 students 22:1 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 (~406 students)
Next steps
Verify locally before acting on Riverdale Grade School's federal record.
- Compare Riverdale Grade School against another school. Compare schools
- Riverdale Sd 51j'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 Riverdale Grade School
How many students attend Riverdale Grade School?
Riverdale Grade School has 406 students enrolled. It is an elementary school in Portland, OR.
What is the student-teacher ratio at Riverdale Grade School?
The student-teacher ratio at Riverdale Grade School is 15.6:1, which is 11% lower than the Oregon average of 17.6:1 and 1% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Riverdale Grade School?
The largest demographic group at Riverdale Grade School is White at 77.3% of enrollment, in Portland, OR.
What is the Resource Investment Index for Riverdale Grade School?
Riverdale Grade School has a Resource Investment Index of 36/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Riverdale Grade School rank among elementary schools in Portland?
By Resource Investment Index, Riverdale Grade School ranks #66 of 87 elementary schools in Portland, 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 Portland on the city page.
Is Riverdale Grade School a good school?
Riverdale Grade School earns 36/100 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 Riverdale Sd 51j?
Besides Riverdale Grade School, Riverdale Sd 51j also operates Riverdale High School (159 students). See the Riverdale Sd 51j 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.