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Charter schoolHighGrades 6–12Charter

John Muir Charter

🇺🇸 Official data · 2025Grass Valley, California 95949 · John Muir Charter District

8.4/ 100
Success Index (US)
Lower 50%

#1332 of 1,343 high schools in California
#16711 of 16,910 nationally

How is this calculated?
Students
629
Enrollment
629
Source: NCES CCD
Free/reduced-price lunch
94.3%
Source: NCES CCD
Students per teacher
17.0
Source: NCES CCD

About John Muir Charter

John Muir Charter is a charter high located in Grass Valley, in the John Muir Charter District school district of California, United States. It caters for Grades 6–12. In 2025 it enrolled 629 students. Publicly funded charter schools operating under a performance contract; free to attend.

Its Success Index (US) is 8.4 out of 100, placing it in the lower 50% of high schools in United States and 1332nd of 1,343 ranked high schools in California. Its strongest component is students per teacher (34th percentile), and its weakest is math proficiency (1th percentile).

Other published figures: enrollment 629.

There are 21 schools in Grass Valley; John Muir Charter ranks 18th of 18 scored schools there.

Success Index (US) breakdown

Each component is a percentile against high schools across United States.

  • Math proficiency (30%)2.5%
  • Reading proficiency (30%)7.5%
  • Community advantage (fewer free/reduced-price lunch) (25%)94.3%
  • Students per teacher (15%)17.0

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 John Muir Charter by the official sources.

Enrollment
629
Students enrolled in the latest NCES directory year.
Free/reduced-price lunch
94.3%
Share of students eligible for free or reduced-price lunch.
Students per teacher
17.0
Enrollment divided by FTE teachers; not class size.
Reading proficiency
7.5%
Share of tested students proficient or above (all students, all grades).
Math proficiency
2.5%
Share of tested students proficient or above (all students, all grades).

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Schools near John Muir Charter

Closest schools by straight-line distance, with their Success Index (US).

Similar schools

Charter high schools in California with a comparable Enrollment.

Frequently asked questions

Is John Muir Charter a good school?

John Muir Charter has a Success Index (US) of 8.4 out of 100 (Lower 50% of high schools in United States) and ranks #1332 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 John Muir Charter rank in California?

John Muir Charter ranks #1332 of 1,343 high schools in California and #16711 of 16,910 nationally on the Success Index (US) (2025 data).

How many students attend John Muir Charter?

John Muir Charter had 629 students in 2025.

Is John Muir Charter a elementary school or a high school?

John Muir Charter is classified as a high covering Grades 6–12. It is a charter school.

What other schools are near John Muir Charter?

There are 10 schools within 15 km of John Muir Charter; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.