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John Muir Charter

Public, Charter Grades 6-12

Summary

John Muir Charter is a public high school in Grass Valley serving grades 6–12, with 629 students, in the John Muir Charter District. The most urgent concern is that chronic absenteeism reached 81% in 2024–2025, up from 75% in 2022–2023, while reported graduation rates were just 17% in 2022–2023 and 21% in 2023–2024, compared with about 86% statewide in both years.

Test results were below California and nearby-school averages in all three subjects in 2024–2025. English language arts was the largest relative weakness: 14% proficient, 35 percentage points below the state and 46 points below the nearby-school average; it was lower than every nearby school’s result. Math was 6%, 31 points below the state and 28 below nearby schools’ average, while science was the relative bright spot at 19%—still 13 points below the state and 26 below nearby schools’ average. The supplied data do not include district subject results, so a district comparison is not possible.

Scores improved from 2022–2023 to 2024–2025: English language arts rose from 8% to 14%, math from 0% to 6%, and science from 13% to 19%, narrowing each gap with the state, though results remain low. John Muir Charter’s SchoolDigger standing also improved, from the 11th percentile to the 21st, but it remained above only one of the eight nearby schools and received 1 star. Its 16.6 students per teacher was below the nearby average of 19.7; 94% of students were free/reduced lunch eligible in 2024–2025, the second-highest rate among nearby schools with that measure. SchoolDigger ranked the school’s service to students with special education needs at the 2nd percentile in 2024–2025, compared with its overall 21st-percentile standing; its English Language Learner ranking also fell from the 17th percentile in 2018–2019 to the 2nd in 2023–2024.

629

Students ?

16.6

Student/teacher ratio ?

94.3%

Free/reduced lunch eligible (2024-25) ?

All students in California receive free school meals.

960 McCourtney Rd.
Grass Valley, CA 95949-7422

(530) 272-4008

District: John Muir Charter District

Racial breakdown:

Hispanic:

73.0%

White:

8.9%

African American:

8.9%

See top rated California public schools

Compare John Muir Charter to nearby high schools!

At a glance

▲ Ranking trend: Improving — 12th percentile in 2019 → 21st in 2025

Strengths

✓Ranking is trending up — up 9 percentile points since 2019

Worth a look

!Test scores below the California average (11% vs 41% meeting standards)

!Graduation rate below the California average (21% vs 86%)

!Dropout rate above the California average (48% vs 9%)

Students meeting standards (2024-2025) ?

This school11%

California avg41%

Not ranked this year

John Muir Charter did not have enough recent test-score data to be ranked. Check the trend below for past years.

Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	California percentile	Rating
2025	18.9	1716 of 2162	20.6%	★☆☆☆☆
2024	13.5	1870 of 2159	13.4%	★☆☆☆☆
2023	13.0	1929 of 2170	11.1%	★☆☆☆☆
2022	12.7	1890 of 2123	11.0%	★☆☆☆☆
2019	12.6	1884 of 2133	11.7%	★☆☆☆☆

African American

Year	Avg score	Statewide rank	California percentile	Rating
2025	18.3	445 of 523	14.9%	★☆☆☆☆

Disabled

Year	Avg score	Statewide rank	California percentile	Rating
2019	18.4	1048 of 1117	6.2%	☆☆☆☆☆

English Language Learner

Year	Avg score	Statewide rank	California percentile	Rating
2024	23.8	1059 of 1085	2.4%	☆☆☆☆☆
2022	24.9	1002 of 1044	4.0%	☆☆☆☆☆
2019	29.3	782 of 941	16.9%	★☆☆☆☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2025	12.8	1651 of 1906	13.4%	★☆☆☆☆
2024	8.1	1871 of 1915	2.3%	☆☆☆☆☆
2022	9.2	1784 of 1858	4.0%	☆☆☆☆☆
2019	10.6	1650 of 1833	10.0%	★☆☆☆☆

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2025	18.5	1534 of 1900	19.3%	★☆☆☆☆
2024	12.7	1692 of 1902	11.0%	★☆☆☆☆
2023	15.5	1629 of 1917	15.0%	★☆☆☆☆
2022	13.0	1659 of 1861	10.9%	★☆☆☆☆
2019	12.1	1618 of 1814	10.8%	★☆☆☆☆

Homeless

Year	Avg score	Statewide rank	California percentile	Rating
2025	10.2	388 of 410	5.4%	☆☆☆☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2025	21.8	1553 of 2013	22.9%	★☆☆☆☆
2024	13.4	1784 of 2026	11.9%	★☆☆☆☆
2023	14.2	1780 of 2030	12.3%	★☆☆☆☆
2022	13.6	1721 of 1943	11.4%	★☆☆☆☆
2019	13.7	1682 of 1937	13.2%	★☆☆☆☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2025	20.1	1514 of 1942	22.0%	★☆☆☆☆
2024	13.3	1689 of 1948	13.3%	★☆☆☆☆
2023	11.8	1782 of 1963	9.2%	☆☆☆☆☆
2022	13.3	1698 of 1916	11.4%	★☆☆☆☆
2019	12.0	1673 of 1880	11.0%	★☆☆☆☆

Multi-racial

Year	Avg score	Statewide rank	California percentile	Rating
2025	7.2	544 of 577	5.7%	☆☆☆☆☆

Special Education

Year	Avg score	Statewide rank	California percentile	Rating
2025	14.6	1227 of 1252	2.0%	☆☆☆☆☆
2024	19.9	1088 of 1216	10.5%	★☆☆☆☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2025	13.6	1010 of 1155	12.6%	★☆☆☆☆

How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)

Low Socio Economic Status (2025)23rd percentile~ school

Male (2025)22nd percentile~ school

Hispanic (2025)19th percentile~ school

African American (2025)15th percentile-6 vs school

Female (2025)13th percentile-7 vs school

White (2025)13th percentile-8 vs school

Disabled (2019)6th percentile-5 vs school

Multi-racial (2025)6th percentile-15 vs school

Homeless (2025)5th percentile-15 vs school

English Language Learner (2024)2nd percentile-11 vs school

Special Education (2025)2nd percentile-19 vs school

By subject vs California (2024-2025) ?

Science19%-13 vs state

English Language Arts/Literacy14%-35 vs state

Mathematics6%-31 vs state

★

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Schools Near John Muir Charter

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Ranking:

E Elementary M Middle H High A Alternative P Private

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Finance All

School													Students/Teachers											Ranking (2026)				Ranking (2025)				CAST Science (2026)			Smarter Balanced Assessments English Language Arts/Literacy (2026)		Smarter Balanced Assessments Mathematics (2026)		Per Pupil Expenditures (2025)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/reduced lunch (2024-25)	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2026)	Statewide Rank (2026)	State Percentile (2026)	SchoolDigger Rating (2026)	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	Rank Change from Previous Year	CAST Science 11th Grade	CAST Science 12th Grade	CAST Science All Grades	Smarter Balanced Assessments English Language Arts/Literacy 11th Grade	Smarter Balanced Assessments English Language Arts/Literacy All Grades	Smarter Balanced Assessments Mathematics 11th Grade	Smarter Balanced Assessments Mathematics All Grades	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
John Muir Charter	Public, Charter	6-12	960 McCourtney Rd.	Grass Valley	95949	Nevada County	John Muir Charter District	Yes	(n/a)	No	(n/a)	(530) 272-4008	629	38	16.6	94.3%	56 (8.9%)	56 (8.9%)	459 (73.0%)	6 (1.0%)	4 (0.6%)	2 (0.3%)	40 (6.4%)								(n/a)
Silver Springs High (Continuation)	Public	9-12	130 Park Ave.	Grass Valley	95945	Nevada County	Nevada Joint Union High	No	(n/a)	No	(n/a)	(530) 272-2635	80	9	8.4	97.5%	59 (73.8%)	1 (1.3%)	8 (10.0%)	0 (0.0%)	1 (1.3%)	1 (1.3%)	6 (7.5%)	7.8	2069^th of 2137 public high schools	3.2%		13.5	1855^th of 2162 public high schools	14.2%	214	3.0		5.6	9.1	9.1	0.0	0.0	$79,519	$74,964	$4,555
William & Marian Ghidotti High	Public	9-12	250 Sierra College Dr.	Grass Valley	95945	Nevada County	Nevada Joint Union High	No	(n/a)	No	(n/a)	(530) 274-5270	155	5	32.0	21.3%	115 (74.2%)	1 (0.6%)	20 (12.9%)	6 (3.9%)	0 (0.0%)	0 (0.0%)	10 (6.5%)	99.2	7^th of 2137 public high schools	99.7%		99.4	3^rd of 2162 public high schools	99.9%	4	100.0		100.0	96.6	96.6	93.1	93.1	$17,899	$17,522	$377
North Point Academy	Public, Virtual	9-12	11761 Ridge Rd.	Grass Valley	95945	Nevada County	Nevada Joint Union High	No	(n/a)	Yes	(n/a)	(530) 477-1225	111	5	20.4	39.6%	80 (72.1%)	0 (0.0%)	21 (18.9%)	0 (0.0%)	3 (2.7%)	0 (0.0%)	5 (4.5%)	29.8	1481^st of 2137 public high schools	30.7%		64.1	709^th of 2162 public high schools	67.2%	772	22.0		21.4	40.0	40.0	9.8	9.8	$20,992	$20,730	$262
Bitney Prep High	Public, Charter	9-12	135 Joerschke Dr.	Grass Valley	95945	Nevada County	Bitney Prep High District	Yes	(n/a)	(n/a)	(n/a)	(530) 477-1235	0			—	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)
Nevada Union High	Public	9-12	11761 Ridge Rd.	Grass Valley	95945	Nevada County	Nevada Joint Union High	No	(n/a)	No	(n/a)	(530) 273-4431	1,561	78	20.1	37.0%	1,101 (70.5%)	16 (1.0%)	293 (18.8%)	16 (1.0%)	13 (0.8%)	2 (0.1%)	115 (7.4%)	69.9	628^th of 2137 public high schools	70.6%		74.8	498^th of 2162 public high schools	77.0%	130	51.6		51.0	56.9	56.9	31.4	31.4	$26,649	$24,952	$1,697
Earle Jamieson Educational Options	Public	6-12	12338 McCourtney Rd.	Grass Valley	95949	Nevada County	Nevada County Office of Education	No	(n/a)	No	(n/a)	(530) 272-5464	5	1	4.9	—	4 (80.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	1 (20.0%)								(n/a)								$454	$454	$00
Sierra Academy of Expeditionary Learning	Public, Charter	9-12	505 Main St.	Nevada City	95959	Nevada County	Sierra Academy of Expeditionary Learning District	Yes	(n/a)	No	(n/a)	(530) 268-2200	191	14	13.3	47.6%	125 (65.4%)	0 (0.0%)	25 (13.1%)	2 (1.0%)	2 (1.0%)	0 (0.0%)	33 (17.3%)								(n/a)
Colfax High	Public	9-12	24995 Ben Taylor Rd.	Colfax	95713	Placer County	Placer Union High	No	(n/a)	No	(n/a)	(530) 346-2284	611	28	22.0	21.3%	465 (76.1%)	3 (0.5%)	61 (10.0%)	5 (0.8%)	4 (0.7%)	0 (0.0%)	68 (11.1%)	81.2	376^th of 2137 public high schools	82.4%		83.9	337^th of 2162 public high schools	84.4%	39	50.0		50.0	77.5	77.5	37.7	37.7	$27,330	$26,630	$700
Bear River High	Public	9-12	11130 Magnolia Rd.	Grass Valley	95949	Nevada County	Nevada Joint Union High	No	(n/a)	No	(n/a)	(530) 268-3700	664	27	24.1	25.2%	486 (73.2%)	1 (0.2%)	114 (17.2%)	14 (2.1%)	4 (0.6%)	1 (0.2%)	38 (5.7%)	78.5	443^rd of 2137 public high schools	79.3%		82.4	370^th of 2162 public high schools	82.9%	73	48.8		49.7	67.8	67.8	39.7	39.7	$26,354	$25,158	$1,196

Frequently Asked Questions about John Muir Charter

What district is John Muir Charter in?

John Muir Charter District

What is the racial makeup of John Muir Charter?

Students at John Muir Charter are 73% Hispanic, 9% White, 9% African American, 6% Two or more races.

How many students attend John Muir Charter?

In the 2024-25 school year, 629 students attended John Muir Charter.

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Latest California data All new data »

2025–26 attendance data, dropout rates & graduation ratesNewOct 15, 2026

2025–26 CAST, CSA Spanish & Smarter Balanced Assessments scoresNewOct 15, 2026

2024–25 school spending dataJul 1, 2026

2024–25 attendance dataMar 13, 2026

SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the California Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.