Below Average
#8548 of 9,533 schools in CA
Granite Mountain Charter
School · Granite Mountain Charter District
8560 Aliento Rd., Lucerne Valley, CA 92356
Enrollment
3,942
Student-Teacher
28.6:1
Score
4.3
Grades
Kindergarten – 12th
Enrollment
3,942
Student-Teacher
28.6:1
Score
4.3
Grades
Kindergarten – 12th
Updated
2022-23
Updated 2022-23
How this school compares
In Lucerne Valley
#5 of 5
public schools
California schools
#428 of 475
Academic growth
8.9 / 10
Exceptional
About Granite Mountain Charter
Granite Mountain Charter serves 3,942 students from kindergarten through 12th grade in Lucerne Valley, California. This public charter school operates with 138 full-time equivalent teachers, resulting in a student-teacher ratio of 28.6:1. The school has room for academic growth, with 44% of students performing proficiently or above in English Language Arts and 27% meeting proficiency standards in mathematics.
The school earned a MySchoolScout rating of 4.3 out of 10 and ranks #6475 out of 9566 schools statewide, placing it in the 32nd percentile among California schools. With an academic score of 5.4 out of 10, Granite Mountain Charter is focusing on student development across its comprehensive K-12 program. The school serves a diverse community where the median household income is $43,780 and 15% of residents hold bachelor's degrees or higher.
The poverty rate in the area stands at 34.7%, reflecting the socioeconomic challenges many families face. Home values average $205,600 in this ZIP code of approximately 7,000 residents. Granite Mountain Charter is situated in rural San Bernardino County, providing students with a small-town educational environment away from urban distractions.
What Parents Should Know
Granite Mountain Charter is a large school with 3,942 students enrolled. Larger schools typically offer a wider range of academic programs, electives, and extracurricular activities. Parents may want to ask about how the school maintains a sense of community and ensures students don't get lost in the crowd.
The student-teacher ratio at Granite Mountain Charter is 28.6:1, which is higher than the national average. This may mean larger class sizes, so parents should ask about classroom support, teaching assistants, and how the school differentiates instruction for students who need extra help.
Granite Mountain Charter is a charter school — a publicly funded school that operates with more autonomy than traditional district schools. Charter schools often have distinct educational models or specialties. Parents should understand the school's specific mission, enrollment process, and how its approach differs from nearby district options.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
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Granite Mountain Charter — Students at Granite Mountain Charter score 35% proficient, which is below what's typical for similar communities (expected: 48%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
47.5%
Students qualifying for federal meal assistance
Test Scores CA CAASPP (2023-24)
Based on 18 test records from CA state assessments. About our data
Proficiency Trend
→ StableAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 8.9/10.
How Granite Mountain Charter Compares
See how Granite Mountain Charter performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has improved from 23% (2021) to 27.8% (2024). Reading/ELA proficiency has declined from 45% (2021) to 42.47% (2024).
Location
8560 Aliento Rd., Lucerne Valley, CA 92356
Nearby Alternatives
Families considering Granite Mountain Charter may also want to explore other schools in the area. Southern California Flex Academy (rated 5.7/10), which scores notably higher. Additionally, High Desert Premier Academy (rated 4.3/10, 16.7 miles away, in nearby Apple Valley), with a very similar rating. For more schools in Lucerne Valley, see our Lucerne Valley schools guide .
Nearby Schools
20 within 16.8 mi| School | Distance | Rating |
|---|---|---|
| Mountain View High Lucerne Valley | 0.0 mi | — |
| Southern California Flex Academy Lucerne Valley | 0.0 mi | 5.7 |
| Lucerne Valley Elementary Lucerne Valley | 3.4 mi | 4.3 |
| Lucerne Valley Middle Lucerne Valley | 3.7 mi | 4.9 |
| Lucerne Valley High Lucerne Valley | 3.7 mi | 5.8 |
| North Shore Elementary Big Bear Lake | 10.3 mi | 5.8 |
| Calvary Chapel Big Bear Christian School Big Bear City | 10.4 mi | — |
| Big Bear Middle Big Bear Lake | 11.6 mi | 7.0 |
| Big Bear High Big Bear Lake | 11.6 mi | 6.6 |
| Chautauqua High (Continuation) Big Bear Lake | 11.6 mi | 3.0 |
| Baldwin Lane Elementary Big Bear Lake | 11.8 mi | 6.5 |
| BEREAN CHRISTIAN Angelus Oaks | 16.8 mi | — |
| Vanguard Preparatory Apple Valley | 15.5 mi | 2.9 |
| Granite Hills High Apple Valley | 16.2 mi | 5.6 |
| Charles Hoffman Elementary Lake Arrowhead | 17.9 mi | 7.9 |
| Mariana Academy Apple Valley | 16.1 mi | 3.5 |
| Sycamore Rocks Elementary Apple Valley | 17.0 mi | 3.2 |
| Apple Valley High Apple Valley | 16.5 mi | 4.1 |
| High Desert Premier Academy Apple Valley | 16.7 mi | 4.3 |
| Apple Valley Virtual Academy Apple Valley | 16.8 mi | 3.8 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 92356 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$46,625
Median Home Value
$239,100
Median Rent
$1,138/mo
Population
6,665
College Educated
14.6%
Homeownership
67.3%
Poverty Rate
36.1%
Median Age
40.9
Community Profile
The community surrounding Granite Mountain Charter has a median household income of $46,625. It is a community where 15% of adults hold a bachelor's degree or higher. The median home value in the area is $239,100, with a median rent of $1,138/month. The area has a poverty rate of 36.1%, indicating some economic challenges in the community. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Feather River Charter Sacramento, CA | 4.3 |
| California Virtual Academy @ San Joaquin Simi Valley, CA | 4.5 |
| Riverside Preparatory Oro Grande, CA | 4.5 |
| California Virtual Academy @ San Diego Simi Valley, CA | 4.6 |
| Cabrillo Point Academy Poway, CA | 4.7 |
| Yosemite Valley Charter Fresno, CA | 4.7 |
Frequently Asked Questions
Common questions about Granite Mountain Charter
What grades does Granite Mountain Charter serve?
Granite Mountain Charter serves students in grades Kindergarten through 12th.
How many students attend Granite Mountain Charter?
Granite Mountain Charter has an enrollment of approximately 3,942 students.
What is the student-teacher ratio at Granite Mountain Charter?
The student-teacher ratio at Granite Mountain Charter is 28.6:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Granite Mountain Charter rank in CA?
Granite Mountain Charter is ranked #8548 out of 9,533 schools in CA.
What is Granite Mountain Charter's MySchoolScout rating?
Granite Mountain Charter has a composite rating of 4.3 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Granite Mountain Charter?
Based on the most recent state assessment data, Granite Mountain Charter has 27.0% math proficiency and 44.0% reading/ELA proficiency.
Is Granite Mountain Charter a charter school?
Yes, Granite Mountain Charter is a charter school. Charter schools are publicly funded but independently operated, often with more flexibility in curriculum and teaching methods.
Is Granite Mountain Charter a Title I school?
No, Granite Mountain Charter is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Granite Mountain Charter?
47.5% of students at Granite Mountain Charter qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Neighborhood Context
Powered by 
FBI UCR 2024. County-level only. Data >1 year old.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- Kindergarten – 12th
- Enrollment
- 3,942
- Student-Teacher Ratio
- 28.6:1
- Teachers (FTE)
- 138
- Free/Reduced Lunch
- 47.5%
- Type
- regular
- Setting
- Distant Rural
- County
- San Bernardino County
- Phone
- (909) 906-3593
- Data Year
- 2023–2024
Resources & Links
District
Granite Mountain Charter District- District Enrollment
- 3,942
- Schools in District
- 1
- Per-Pupil Spending
- $13,611
- District Rank
- #1 of 1
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
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