Enrollment
159
High
DISTRICT 283 · STATE 630
SCHOOL COMMUNITY·RIVERDALE SD 51J·NCES 411056000892
Riverdale High School
9727 SW Terwilliger Blvd, Portland, OR 97219 · (503) 262-4844 · Multnomah County
GRADES 09–12HIGH11-CITYREGULAR SCHOOL159 STUDENTS
A+
allk12 Grade
Scored higher than 99% of Oregon public high schools
- A+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Oregon public high schools
Student : Teacher
9.5:1
17 FTE teachers
DISTRICT 13.0:1 · STATE 19.8:1
Free / Reduced Lunch
,
Title I proxy
STATE 76%
Community
0
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 47 | 30% |
| Grade 10 | 36 | 23% |
| Grade 11 | 30 | 19% |
| Grade 12 | 46 | 29% |
Student demographics
36%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 38% · STATE 59% · 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
School pathway
Feeds from
Based on grade levels within Riverdale SD 51J. Attendance zones can vary; confirm enrollment with the district.
Test scores
OSAS 2024-25 . % ProficientEnglish Language Arts
84.2%
OR avg 43.0% . +0.1pp since 2023
Math
59.1%
OR avg 31.8% . -3.1pp since 2023
What this means: On the OSAS, Oregon's statewide test, about 84 of every 100 students at this school read and write at grade level and about 59 of 100 do math at grade level. Across all Oregon schools, those numbers are about 43 and 32. Reading and writing scores have held steady since 2023, while math scores are down about 3 points.
OSAS results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 84.2% | 59.1% |
| 2023-24 | 84.1% | 62.2% |
% Proficient, all students and all tested grades.
Source: OSAS. All students, all grades. See all years and grades →
Where Riverdale High School ranks
Among high schools| Measure | This school | In Oregon | In Multnomah County |
|---|---|---|---|
| Math proficiency ranked highest first | 59.1% | #4 of 194 no change | #1 of 17 no change |
| Reading proficiency ranked highest first | 84.2% | #3 of 201 ▼ 1 | #1 of 17 no change |
| Enrollment ranked largest first | 159 | #193 of 257 | #19 of 24 |
| Enrollment change since 2017-18 ranked steepest decline first | -33.5% | #3 of 102 | #1 of 8 |
Ranked against other public high 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. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
159
-62 (-28%) vs 2020
+51% since 2000-01, when it was 105
Student : Teacher
9.5:1
was 15.8:1
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 | 159 | 16.8 | 9.5:1 | N/A |
| 2023-24 | 164 | 15 | 10.9:1 | N/A |
| 2022-23 | 185 | 15 | 12.3:1 | N/A |
| 2020-21 | 221 | 14 | 15.8:1 | N/A |
| 2017-18 | 239 | 18.1 | 13.2:1 | N/A |
| 2015-16 | 240 | 15 | 16.0:1 | N/A |
| 2010-11 | 248 | 15 | 16.5:1 | 0% (0) |
| 2000-01 | 105 | 11 | 9.6:1 | 2% (2) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Riverdale High School.
Since 2017-18: students down 33% (239 to 159); teachers down 7% (18.1 to 16.8).
About Riverdale High School
Riverdale High School is a high school with a street address in Portland, Oregon. It reported 159 students in grades 9 through 12 in 2024-25. High schools in Oregon average about 630 students, which makes this school 75% below average.
Riverdale High School falls under Riverdale SD 51J, which has 2 schools enrolling 565 students.
At Riverdale High School, 78% of students are White. After that, the student body is 11% multiracial, 8% Hispanic, and 3% Asian. Census figures show Multnomah County is about 68% White. Measured by the diversity index, the student body scores 36%.
The school's 16.8 full-time-equivalent teachers translate to a student-to-teacher ratio of 9.5:1. Statewide, high schools in Oregon average 19.8:1.
On the allk12 Grade, Riverdale High School lands at A+, ahead of 99% of Oregon public high schools.
Looking at the county, Multnomah County, median household income comes to about $88,766, a bachelor's degree or higher is held by about 49% of adults, and the share of residents below the poverty line is 7%. The county's public schools total 169, with about 81,096 students.
Measured in a straight line, Capitol Hill Elementary School is about 0.9 miles from Riverdale High School. Other public schools within five miles: at least 8.
For locale, NCES codes Riverdale High School as City: Large.
Enrollment in 2024-25 stood at 159, compared with 221 in 2020-21. From 2020-21 to 2024-25, the ratio dropped from 15.8:1 to 9.5:1.
This page is a place to ask questions and share updates about fundraisers, report cards, and school supplies at Riverdale High School. Members of the school community can share what they know.
Multnomah County at a glance
View full county profilePopulation
801,477
Census ACS
Median income
$88,766
Household, ACS
Bachelor's+
49%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
169
81,096 students
Quick facts
Related schools
Other schools in Portland
- David Douglas High SchoolHigh · 2,756 students
- Westview High SchoolHigh · 2,423 students
- Grant High SchoolHigh · 2,149 students
- Sunset High SchoolHigh · 1,812 students
- Franklin High SchoolHigh · 1,807 students
- Leodis V. McDaniel High SchoolHigh · 1,681 students
Other Riverdale High schools
7 other US public schools in 8 states are named Riverdale High. Riverdale High School is the 8th largest of the 8.
- Riverdale High SchoolMurfreesboro, TN · 2,275 students
- RIVERDALE HIGH SCHOOLFORT MYERS, FL · 1,916 students
- Riverdale High SchoolRiverdale, GA · 1,359 students
- Riverdale High SchoolJefferson, LA · 1,259 students
- Riverdale HighRiverdale, CA · 496 students
Nearby schools
- Capitol Hill Elementary School0.9 mi · 323
- Stephenson Elementary School1.3 mi · 285
- Jackson Middle School1.5 mi · 715
- Rieke Elementary School1.6 mi · 279
- Ida B. Wells-Barnett High School1.6 mi · 1,650
- Riverdale Grade School1.7 mi · 406
Frequently asked questions
About Riverdale High SchoolHow many students attend Riverdale High School?
Riverdale High School enrolls approximately 159 students in grades 09-12.
What age range does Riverdale High School serve?
Riverdale High School serves students from grade 09 through grade 12.
How many students per teacher at Riverdale High School?
Approximately 9.5:1 students per teacher at Riverdale High School.
What is the student diversity at Riverdale High School?
Student demographics at Riverdale High School are roughly 78% White, 8% Hispanic, 3% Asian, 11% Two or more.
What district is Riverdale High School in?
Riverdale High School is part of Riverdale SD 51J.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.