Lost River Jr./Sr. High School is a junior/senior public high school serving Merrill, Oregon and Malin, Oregon United States. It is named after the Lost River in Southern Oregon and Northern California.
Serving 242 students in grades 7-12, Lost River High School ranks in the top 50% of all schools in Oregon for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 25-29% (which is lower than the Oregon state average of 31%). The percentage of students achieving proficiency in reading/language arts is 50-54% (which is higher than the Oregon state average of 44%).
The student-teacher ratio of 16:1 is lower than the Oregon state level of 17:1.
Minority enrollment is 55% of the student body (majority Hispanic), which is higher than the Oregon state average of 43% (majority Hispanic).
Quick Facts (2026)
- Grades: 7-12
- Enrollment: 242 students
- Student-Teacher Ratio: 16:1
- Minority Enrollment: 55%
- Graduation Rate: ≥90% (Top 20% in OR)
- Overall Testing Rank: Top 50%
- Math Proficiency: 25-29% (Top 50%)
- Reading Proficiency: 50-54% (Top 30%)
- Science Proficiency: 20-24% (Btm 50%)
- Source: National Center for Education Statistics (NCES), OR Dept. of Education
Top Rankings
Lost River High School ranks among the top 20% of public schools in Oregon for:
Category
Attribute
Most improved public schools
Graduation Rate
Percent Eligible For Free Lunch
School Overview
Lost River High School's student population of 242 students has grown by 7% over five school years.
The teacher population of 15 teachers has grown by 7% over five school years.
Grades Offered
Grades 7-12
(No virtual instruction)
(No virtual instruction)
Total Students
242 students
Total Classroom Teachers
15 teachers
School Rankings
Lost River High School ranks within the top 50% of all 1,174 schools in Oregon (based off of combined math and reading proficiency testing data).
The diversity score of Lost River High School is 0.52, 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
#435 out of 1174 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
25-29%
31%
Reading/Language Arts Test Scores (% Proficient)
50-54%
44%
Science Test Scores (% Proficient)
20-24%
30%
Student-Teacher Ratio
16:1
17:1
American Indian
n/a
1%
Asian
n/a
4%
Hispanic
53%
26%
Black
n/a
3%
White
45%
57%
Hawaiian
n/a
1%
Two or more races
2%
8%
All Ethnic Groups
Graduation Rate
≥90%
81%
Eligible for Free Lunch
92%
67%
Eligible for Reduced Lunch (21-22)
4%
8%
School Statewide Testing
School District Name
Klamath County School District
Source: National Center for Education Statistics (NCES), OR Dept. of Education
School Notes
- School Mascot: Raider
Frequently Asked Questions
What is Lost River High School's ranking?
Lost River High School is ranked #435 out of 1,174 schools, which ranks it among the top 50% of public schools in Oregon.
What percent of students have achieved state testing proficiency in math and reading?
25-29% of students have achieved math proficiency (compared to the 31% OR state average), while 50-54% of students have achieved reading proficiency (compared to the 44% OR state average).
What is the graduation rate of Lost River High School?
The graduation rate of Lost River High School is 90%, which is higher than the Oregon state average of 81%.
How many students attend Lost River High School?
242 students attend Lost River High School.
What is the racial composition of the student body?
53% of Lost River High School students are Hispanic, 45% of students are White, and 2% of students are Two or more races.
What is the student-teacher ratio of Lost River High School?
Lost River High School has a student ration of 16:1, which is lower than the Oregon state average of 17:1.
What grades does Lost River High School offer ?
Lost River High School offers enrollment in grades 7-12 (No virtual instruction).
What school district is Lost River High School part of?
Lost River High School is part of Klamath County School District.
School Reviews
Review Lost River High School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
Recent Articles
AI Report Cards: Should Schools Evaluate AI Use?
Explore whether schools should assess student AI use, the benefits, risks, and what responsible AI report cards could look like in 2026.
The Parent’s Guide to School Cell Phone Bans in 2026
Learn how school cell phone bans work in 2026, why districts are adopting them, and what parents should expect.
Parental Involvement in Public Schools: 2026 Update
Explore the latest 2026 trends, research, and strategies shaping parental involvement in public schools and student success.
