Enrollment
159
Oregon · 2024-25 NCES data
High school (grades 9-12) · Portland, OR
Riverdale High School
Federal NCES profile for Riverdale High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 411056000892
👥 S:T ratio 58
📚 AP courses 10
🌟 Gifted program 70
🎓 Counselors 84
📋 Attendance 17
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Riverdale High School earns 48/100 on the Resource Investment Index, with class sizes smaller than 94% of Oregon schools.
- #2 of 16
- high schools in Portland · Resource Index
- 48
- Resource Index · Typical
- 10.6:1
- small classes for Oregon
- 159
- students enrolled
Riverdale High School has class sizes smaller than 94% of Oregon schools. Computed live against every Oregon school reporting to NCES.
By Resource Investment Index, Riverdale High School ranks #2 of 16 high schools in Portland, OR.
School address
District: Riverdale Sd 51j · Oregon
NCES ID 411056000892 Verify on NCES CCD record →
Teachers (FTE)
15.0
Federal CCD staff survey
Students per teacher
10.6:1
vs 17.6:1 Oregon avg
-40% vs state
Student-teacher ratio in context
How Riverdale High School compares with Oregon and U.S. medians
What stands out at Riverdale High School
Riverdale High School is a mid-sized high school in Portland, Oregon, enrolling 159 students.
Classes run notably small here: at 10.6:1, Riverdale High School is leaner than roughly 94% of Oregon schools and 40% under the state's 17.6:1 norm, more adult attention per pupil than most peers.
Enrollment of 159 puts it in the smaller third of Oregon schools by headcount.
Its Resource Investment Index outscores 96% of the 1,273 Oregon schools with a score on record, a top-tier result on this measure.
Its student body is led by White (79%) and Two or More (11%) (diversity index 36/100).
No Advanced Placement courses are reported for this campus in the federal data.
Counselor coverage is strong, about 80 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 33.3% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Portland's high schools, it stands alongside David Douglas High School (2,756 students): Riverdale High School is smaller than that campus by headcount and runs leaner classes (10.6:1 vs 19.1:1).
Its district, Riverdale Sd 51j, also runs Riverdale Grade School (406 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 High School compares
Riverdale High 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 | 10.6:1 | ▼ 40% | 17.6:1 | 15.7:1 |
| Enrollment | 159 | top 83% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
10.6:1
Leaner classes than 85% of US schools, among the more generously staffed nationally.
159
Bigger than 15% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Staffing depth
10.6:1
students per teacher
- 40% below state mean
Top 6% in Oregon - lower ratio than 94% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
33.3%
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
$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
Counselors2.0 FTE
Per 80 students, the combined health-and-guidance staffing load for this school.
Discipline context
1
in-school suspensions + 2 out-of-school
Suspension rate: 0.6 per 100 students. Combined in-school and out-of-school rate: 1.9 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 79.0%
Two or More 10.8%
Hispanic or Latino 7.6%
Asian 2.5%
Largest group: White at 79.0% of enrollment.
Student-body diversity index 35.8/100
Simpson diversity index - at 35.8, Riverdale High School is less mixed than the Oregon school average of 47.1.
Programs
AP program Not offered
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Riverdale Sd 51j, which includes Riverdale High 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 High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Riverdale Grade School | Larger | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Riverdale High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 406
- Students per teacher
- 15.6:1
- Resource Index
- 36/100
Similar high schools in Portland
6 comparable high schools (grades 9-12) serving the same city.
David Douglas High School
Standard public school
2,756 students 19.1:1 students per teacher
Westview High School
Standard public school
2,423 students 22.4:1 students per teacher
Grant High School
Standard public school
2,149 students 21.3:1 students per teacher
Sunset High School
Standard public school
1,812 students 21.3:1 students per teacher
Franklin High School
Standard public school
1,807 students 17.2:1 students per teacher
Leodis V. Mcdaniel High School
Standard public school
1,681 students 18.5:1 students per teacher
Similar high 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 (~159 students)
Similar student-teacher ratio (~10.6:1)
Next steps
Verify locally before acting on Riverdale High School's federal record.
- Compare Riverdale High 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 High School
How many students attend Riverdale High School?
Riverdale High School has 159 students enrolled. It is a high school in Portland, OR.
What is the student-teacher ratio at Riverdale High School?
The student-teacher ratio at Riverdale High School is 10.6:1, which is 40% lower than the Oregon average of 17.6:1 and 32% 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 High School?
The largest demographic group at Riverdale High School is White at 79.0% of enrollment, in Portland, OR.
What is the Resource Investment Index for Riverdale High School?
Riverdale High School has a Resource Investment Index of 48/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Riverdale High School rank among high schools in Portland?
By Resource Investment Index, Riverdale High School ranks #2 of 16 high 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 high schools in Portland on the city page.
Is Riverdale High School a good school?
Riverdale High School earns 48/100 on the Resource Investment Index, with class sizes smaller than 94% of Oregon schools. 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 High School, Riverdale Sd 51j also operates Riverdale Grade School (406 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.