Serving 816 students in grades 9-12, Lassen High School ranks in the bottom 50% of all schools in California 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 California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 30-34% (which is lower than the California state average of 47%).
The student-teacher ratio of 20:1 is lower than the California state level of 21:1.
Minority enrollment is 46% of the student body (majority Hispanic), which is lower than the California state average of 80% (majority Hispanic).
Quick Facts (2026-27)
- Grades: 9-12
- Enrollment: 816 students
- Student-Teacher Ratio: 20:1
- Minority Enrollment: 46%
- Graduation Rate: ≥95% (Top 20% in CA)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 15-19% (Btm 50%)
- Reading Proficiency: 30-34% (Btm 50%)
- Science Proficiency: 10-14% (Btm 50%)
- Attendance Zone: Lassen High's attendance zone covers the entire district in Susanville, CA, encompassing approximately 2,600.7 square miles, with typical drives to the school ranging from 20 to 30 minutes and an average distance of 30.8 miles from the school to the edge of the zone, reaching up to 53.6 miles at its furthest point.
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
Lassen High School ranks among the top 20% of public schools in California for:
Category
Attribute
Graduation Rate
School Overview
Lassen High School's student population of 816 students has stayed relatively flat over five school years.
The teacher population of 40 teachers has grown by 8% over five school years.
Grades Offered
Grades 9-12
Total Students
816 students
Total Classroom Teachers
40 teachers
Year Founded
2025
School Calendar
School Rankings
Lassen High School ranks within the bottom 50% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Lassen High School is 0.64, which is more than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#6946 out of 9523 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
15-19%
34%
Reading/Language Arts Test Scores (% Proficient)
30-34%
47%
Science Test Scores (% Proficient)
10-14%
29%
Student-Teacher Ratio
20:1
21:1
American Indian
2%
1%
Asian
2%
12%
Hispanic
24%
56%
Black
2%
5%
White
54%
20%
Hawaiian
2%
n/a
Two or more races
14%
6%
All Ethnic Groups
Graduation Rate
≥95%
87%
Chronically Absent Students
(22-23)21.3%
27.7%
Eligible for Free Lunch
33%
54%
Eligible for Reduced Lunch
1%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Frequently Asked Questions
What is Lassen High School's ranking?
Lassen High School is ranked #6946 out of 9,523 schools, which ranks it among the bottom 50% of public schools in California.
What schools are Lassen High School often compared to?
Lassen High Schoolis often viewed alongside schools like Mt. Lassen Charter, Herlong 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 34% CA state average), while 30-34% of students have achieved reading proficiency (compared to the 47% CA state average).
What is the graduation rate of Lassen High School?
The graduation rate of Lassen High School is 95%, which is higher than the California state average of 87%.
How many students attend Lassen High School?
816 students attend Lassen High School.
What is the racial composition of the student body?
54% of Lassen High School students are White, 24% of students are Hispanic, 14% of students are Two or more races, 2% of students are American Indian, 2% of students are Asian, 2% of students are Black, and 2% of students are Hawaiian.
What is the student-teacher ratio of Lassen High School?
Lassen High School has a student ration of 20:1, which is lower than the California state average of 21:1.
What grades does Lassen High School offer ?
Lassen High School offers enrollment in grades 9-12
What school district is Lassen High School part of?
Lassen High School is part of Lassen Union High School District.
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