Serving 279 students in grades 7-12, Mossyrock Jr./sr. High School ranks in the bottom 50% of all schools in Washington for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 15-19% (which is lower than the Washington state average of 41%). The percentage of students achieving proficiency in reading/language arts is 50-54% (which is approximately equal to the Washington state average of 53%).
The student-teacher ratio of 17:1 is higher than the Washington state level of 16:1.
Minority enrollment is 32% of the student body (majority Hispanic), which is lower than the Washington state average of 52% (majority Hispanic).
Quick Facts (2025-26)
- Grades: 7-12
- Enrollment: 279 students
- Student-Teacher Ratio: 17:1
- Minority Enrollment: 32%
- Graduation Rate: ≥90% (Top 30% in WA)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 15-19% (Btm 50%)
- Reading Proficiency: 50-54% (Top 50%)
- Science Proficiency: 40-44% (Btm 50%)
- Source: National Center for Education Statistics (NCES), WA Dept. of Education
School Overview
Mossyrock Jr./sr. High School's student population of 279 students has grown by 24% over five school years.
The teacher population of 16 teachers has grown by 23% over five school years.
Grades Offered
Grades 7-12
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
279 students
Gender %
Total Classroom Teachers
16 teachers
School Calendar
School Rankings
Mossyrock Jr./sr. High School ranks within the bottom 50% of all 2,088 schools in Washington (based off of combined math and reading proficiency testing data).
The diversity score of Mossyrock Jr./sr. High School is 0.47, which is less than the diversity score at state average of 0.69. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#1476 out of 2088 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
15-19%
41%
Reading/Language Arts Test Scores (% Proficient)
50-54%
53%
Science Test Scores (% Proficient)
40-44%
49%
Student-Teacher Ratio
17:1
16:1
American Indian
n/a
1%
Asian
n/a
9%
Hispanic
27%
26%
Black
1%
5%
White
68%
48%
Hawaiian
1%
2%
Two or more races
3%
9%
All Ethnic Groups
Graduation Rate
≥90%
84%
Eligible for Free Lunch
66%
49%
Eligible for Reduced Lunch
11%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), WA Dept. of Education
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Mossyrock Jr./sr. High School's ranking?
Mossyrock Jr./sr. High School is ranked #1476 out of 2,088 schools, which ranks it among the bottom 50% of public schools in Washington.
What schools are Mossyrock Jr./sr. High School often compared to?
Mossyrock Jr./sr. High Schoolis often viewed alongside schools like White Pass Jr. Sr. High School, Morton Junior-senior High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
15-19% of students have achieved math proficiency (compared to the 41% WA state average), while 50-54% of students have achieved reading proficiency (compared to the 53% WA state average).
What is the graduation rate of Mossyrock Jr./sr. High School?
The graduation rate of Mossyrock Jr./sr. High School is 90%, which is higher than the Washington state average of 84%.
How many students attend Mossyrock Jr./sr. High School?
279 students attend Mossyrock Jr./sr. High School.
What is the racial composition of the student body?
68% of Mossyrock Jr./sr. High School students are White, 27% of students are Hispanic, 3% of students are Two or more races, 1% of students are Black, and 1% of students are Hawaiian.
What is the student-teacher ratio of Mossyrock Jr./sr. High School?
Mossyrock Jr./sr. High School has a student ration of 17:1, which is higher than the Washington state average of 16:1.
What grades does Mossyrock Jr./sr. High School offer ?
Mossyrock Jr./sr. High School offers enrollment in grades 7-12 (Supplemental Virtual).
What school district is Mossyrock Jr./sr. High School part of?
Mossyrock Jr./sr. High School is part of Mossyrock School District.
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