Lassen High
🇺🇸 Official data · 2025Susanville, California 96130 · Lassen Union High
#414 of 1,343 high schools in California
#8599 of 16,910 nationally
About Lassen High
Lassen High is a public high located in Susanville, in the Lassen Union High school district of California, United States. It caters for Grades 9–12. In 2025 it enrolled 816 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 49.2 out of 100, placing it in the lower 50% of high schools in United States and 414th of 1,343 ranked high schools in California. Its strongest component is community advantage (fewer free/reduced-price lunch) (75th percentile), and its weakest is students per teacher (16th percentile).
Other published figures: enrollment 816.
There are 8 schools in Susanville; Lassen High ranks 2nd of 6 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)32%
- Reading proficiency (30%)57%
- Community advantage (fewer free/reduced-price lunch) (25%)34.2%
- Students per teacher (15%)20.4
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Lassen High by the official sources.
- Enrollment
- 816
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 34.2%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 20.4
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 57%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 32%
- Share of tested students proficient or above (all students, all grades).
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Schools near Lassen High
Closest schools by straight-line distance, with their Success Index (US).
McKinley Elementary
Susanville · Public elementary · Grades K–2
378 students · 1.1 km away
Susanville State Preschool
Susanville · Public other
· 1.2 km away
Diamond View Middle
Susanville · Public middle · Grades 6–8
288 students · 1.2 km away
Thompson Peak Charter
Susanville · Charter other · Grades K–12
151 students · 1.5 km away
Meadow View
Susanville · Public elementary · Grades 3–5
318 students · 2.0 km away
Richmond Elementary
Susanville · Public elementary · Grades K–8
192 students · 5.2 km away
Johnstonville Elementary
Susanville · Public elementary · Grades K–8
211 students · 6.7 km away
Similar schools
Public high schools in California with a comparable Enrollment.
Escalon High
Escalon · Public high · Grades 9–12
815 students
Laguna Beach High
Laguna Beach · Public high · Grades 9–12
815 students
La Puente High
La Puente · Public high · Grades 9–12
813 students
Nipomo High
Nipomo · Public high · Grades 9–12
819 students
Clairemont High
San Diego · Public high · Grades 9–12
823 students
Del Sol High
Oxnard · Public high · Grades 9–12
808 students
Frequently asked questions
Is Lassen High a good school?
Lassen High has a Success Index (US) of 49.2 out of 100 (Lower 50% of high schools in United States) and ranks #414 of 1,343 in California. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Lassen High rank in California?
Lassen High ranks #414 of 1,343 high schools in California and #8599 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Lassen High?
Lassen High had 816 students in 2025.
Is Lassen High a elementary school or a high school?
Lassen High is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Lassen High?
There are 7 schools within 15 km of Lassen High; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.