Mt. Lassen Charter
100 David S Hall Street, Herlong, CA 96113
Summary
Mt. Lassen Charter is badly underperforming.
Reading and math results average to the 6th percentile among comparable California schools.
Only 13.8% of students met California's reading standard, and it is trending down.
Math is weaker: 3.4% of students met California's math standard, and it is slowly trending down.
Proficiency stats
| Current Reading Proficiency | 13.8% |
| Current Math Proficiency | 3.4% |
| Reading State Rank | 1,596/1,734 (8th percentile) |
| Math State Rank | 1,681/1,735 (3rd percentile) |
School information
| Student / Teacher Ratio | 19:1 |
| Student enrollment (2024–25) | 154 |
| Low-Income Students | 108 (70.1%) |
| English Learners | 4 (2.6%) |
School Website
Great Schools
Niche
Ed-Data
CAASPP| Admissions | Open enrollment |
|---|---|
| Charter school | Yes |
| Magnet school | No |
Test score trends
Reading fell 3.3 points from last year and fell 9.0 points over the full period. Math rose 0.7 points from last year and fell 4.2 points over the full period.
•Math -4.2 percentage points (2024–2026)Reading Proficiency Scores
2026 state test results
Race and Ethnicity
Only one group has a reportable reading result.
Distribution of Scores by Grade
18.2% of tested students meet the reading standard in the grade shown. Overall, the school’s reading results rank No. 1,596 of 1,734 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 13.2-point reading income gap is slightly wider than the 11.6-point gap at a typical California K–12 school. It narrowed over the period shown.
•English Learners vs English Native
Results for both language groups are unavailable, so a current reading gap cannot be calculated.
Math Proficiency Scores
2026 state test results
Race and Ethnicity
Only one group has a reportable math result.
Distribution of Scores by Grade
0.0% of tested students meet the math standard in the grade shown. Overall, the school’s math results rank No. 1,681 of 1,735 among California schools in the same grade-level category.
Low-Income vs Non-Low-Income
The 8.7-point math income gap is narrower than the 10.8-point gap at a typical California K–12 school. It narrowed over the period shown.
•English Learners vs English Native
Results for both language groups are unavailable, so a current math gap cannot be calculated.
How we compare income gaps
“Typical” means the median gap across 249 schools for reading and 251 for math. The comparison uses 2026 California K–12 schools with at least 20 tested students in each income group and a reported low-income student population. Each school counts once. Its gap is non-low-income proficiency minus low-income proficiency, including negative gaps. California state test data
Understanding this school
How does Mt. Lassen Charter compare within the district?
Mt. Lassen Charter is No. 2 in both reading and math proficiency among the 2 K–12 schools in Fort Sage Unified with 2026 results.
Explore the district’s schoolsHow does Mt. Lassen Charter rank in California?
Mt. Lassen Charter ranks No. 1,596 of 1,734 in reading and No. 1,681 of 1,735 in math for 2026. These proficiency rankings compare California schools in the same grade-level category.
How do low-income students at Mt. Lassen Charter compare within the district?
Low-income students here rank No. 2 in both subjects among 2 K–12 district schools with reportable 2026 results for this group. 8.6% meet the reading standard and 0.0% meet the math standard.
See results by student groupHow does Mt. Lassen Charter compare with other schools in Lassen County?
Mt. Lassen Charter is No. 3 in both reading and math proficiency among the 3 K–12 schools in Lassen County with 2026 results.
Explore schools in Lassen CountyWhich schools should I compare?
Schools serving K–12 in the same district.
| School | Math | Reading |
|---|---|---|
| Mt. Lassen CharterThis school | 3.4% | 13.8% |
| Long Valley | 8.2% | 25.7% |
