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%)
- Attendance Zone: Lost River High School serves the southern part of Merrill, OR, covering an area of approximately 133.6 square miles. Families in this zone can typically expect a drive of 15-20 minutes to reach the school, with an average distance of 7.6 miles to the zone's edge and a maximum distance of 14.3 miles.
- 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
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%
Chronically Absent Students
(22-23)22.7%
43.8%
Eligible for Free Lunch
92%
67%
Eligible for Reduced Lunch (21-22)
4%
8%
School Statewide Testing
School District Name
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
The First Six Weeks at a New Public School
The first six weeks reveal how children are adapting to a new public school. Learn which academic, social, emotional, attendance, and routine signals parents should monitor closely.
Will Your Child Receive Enough Individual Attention? Looking Beyond Student-Teacher Ratios
Student-teacher ratios reveal only part of a school’s story. Learn how families can evaluate class size, staffing, teacher access, tutoring, feedback, and personalized support for children today.
What Families Should Ask About AI Use in Public Schools
Families need clear answers about classroom AI. Learn what to ask public schools about teaching, academic integrity, privacy, teacher oversight, equity, and student learning before concerns arise.
