Riverdale High School is a public high school in the Dunthorpe neighborhood of Portland, Oregon, United States. The high school is a public school, but students from outside the district must go through an admissions process and pay tuition to attend, unless they get a district transfer from their original district.
Serving 159 students in grades 9-12, Riverdale High School ranks in the top 10% of all schools in Oregon for overall test scores (math proficiency is top 20%, and reading proficiency is top 20%).
The percentage of students achieving proficiency in math is 50-59% (which is higher than the Oregon state average of 31%). The percentage of students achieving proficiency in reading/language arts is 70-79% (which is higher than the Oregon state average of 44%).
The student-teacher ratio of 9:1 is lower than the Oregon state level of 17:1.
Minority enrollment is 22% of the student body (majority Hispanic), which is lower than the Oregon state average of 43% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 159 students
- Student-Teacher Ratio: 9:1
- Minority Enrollment: 22%
- Graduation Rate: ≥90% (Top 20% in OR)
- Overall Testing Rank: Top 10%
- Math Proficiency: 50-59% (Top 20%)
- Reading Proficiency: 70-79% (Top 5%)
- Science Proficiency: 60-69% (Top 5%)
- Source: National Center for Education Statistics (NCES), OR Dept. of Education
Top Rankings
Riverdale High School ranks among the top 20% of public schools in Oregon for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
Science Proficiency
Graduation Rate
School Overview
Riverdale High School's student population of 159 students has declined by 28% over five school years.
The teacher population of 17 teachers has grown by 21% over five school years.
Grades Offered
Grades 9-12
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
159 students
Total Classroom Teachers
17 teachers
Year Founded
1996
Colors
Navy Blue, Silver
School Rankings
Riverdale High School ranks within the top 10% of all 1,174 schools in Oregon (based off of combined math and reading proficiency testing data).
The diversity score of Riverdale High School is 0.38, which is less than the diversity score at state average of 0.60. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#73 out of 1174 schools
(Top 10%)
(Top 10%)
Math Test Scores (% Proficient)
50-59%
31%
Reading/Language Arts Test Scores (% Proficient)
70-79%
44%
Science Test Scores (% Proficient)
60-69%
30%
Student-Teacher Ratio
9:1
17:1
American Indian
n/a
1%
Asian
3%
4%
Hispanic
8%
26%
Black
n/a
3%
White
78%
57%
Hawaiian
n/a
1%
Two or more races
11%
8%
All Ethnic Groups
Graduation Rate
≥90%
81%
Chronically Absent Students
(22-23)35.9%
43.8%
Eligible for Free Lunch
2%
67%
Eligible for Reduced Lunch
1%
n/a
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), OR Dept. of Education
School Notes
- School Mascot: Max The Maverick
Frequently Asked Questions
What is Riverdale High School's ranking?
Riverdale High School is ranked #73 out of 1,174 schools, which ranks it among the top 10% of public schools in Oregon.
What schools are Riverdale High School often compared to?
Riverdale High Schoolis often viewed alongside schools like Cleveland High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
50-59% of students have achieved math proficiency (compared to the 31% OR state average), while 70-79% of students have achieved reading proficiency (compared to the 44% OR state average).
What is the graduation rate of Riverdale High School?
The graduation rate of Riverdale High School is 90%, which is higher than the Oregon state average of 81%.
How many students attend Riverdale High School?
159 students attend Riverdale High School.
What is the racial composition of the student body?
78% of Riverdale High School students are White, 11% of students are Two or more races, 8% of students are Hispanic, and 3% of students are Asian.
What is the student-teacher ratio of Riverdale High School?
Riverdale High School has a student ration of 9:1, which is lower than the Oregon state average of 17:1.
What grades does Riverdale High School offer ?
Riverdale High School offers enrollment in grades 9-12 (Supplemental Virtual).
What school district is Riverdale High School part of?
Riverdale High School is part of Riverdale SD 51j School District.
In what neighborhood is Riverdale High School located?
Riverdale High School is located in the Southwest Portland neighborhood of Portland, OR. There are 10 other public schools located in Southwest Portland.
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