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#5386 of 9,539 schools in CA

Granite Mountain Charter

School · Granite Mountain Charter District · Lucerne Valley, CA

A charter school in Lucerne Valley, CA where students score 12 points below what's typical for similar communities.

Charter

8560 Aliento Rd., Lucerne Valley, CA 92356

  • Math 27% vs CA 36% (2024)
  • Reading 44% vs CA 47% (2024)
  • 87.0% 4-year graduation

Academics

Full Profile · 4/4 metrics
Student Progress9.7Excellent25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data4
Annual Change+0.5 pts/yr
Data Period2020–2024
TrendStable
Academics5.4Average25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency27.8% (2024 CAASPP)
Reading/ELA Proficiency42.5% (2024 CAASPP)
Math vs. State Avg-17.9 pts
Reading vs. State Avg-0.3 pts
Overall Proficiency35% (2024 CAASPP, Math+ELA)
Expected (poverty-adj.)48% (model expectation from 2024 CAASPP)
vs. Expected-12.5 pts
Adjusted Percentile36th
College Readiness4.6Below Average30%
Graduation rates, AP course participation, and IB availability.
View breakdown
4-Year Graduation Rate87%
AP Participation0.2%
IB ProgramNo
Resources & Environment4.1Below Average20%
Student-teacher ratio, district spending per student, and attendance.
View breakdown
Student-Teacher Ratio28.6:1
District spending per student$13,611
Chronic Absenteeism1%

Students at Granite Mountain Charter score 35% proficient, which is below what's typical for similar communities (expected: 48%).

How we calculate scores →

2024 CAASPP proficiency

Most recent published year. School vs. CA average.

Math Proficiency27%(2024 CAASPP)
School
State
36%(2024 CAASPP)
ELA Proficiency44%(2024 CAASPP)
School
State
47%(2024 CAASPP)

Trend

→ Steady

Proficiency has held near 36% across the 5-year record (2020–2024).

Show all 4 years by subject
2020*
Math
23%
ELA
45%
2021*
Math
23%
ELA
45%
2022
Math
24%
ELA
42%
2024
Math
27%
ELA
44%

Multi-year averages used by the rating model: math 26% (multi-year average, 2020-2024) · reading/ELA 44% (multi-year average, 2020-2024)

* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.

Based on 22 test records from CA state assessments and EdFacts (NCES).

Equity & diversity

Shown separately, not included in the overall score

Free/reduced lunch

47.5%

Students qualifying for federal meal assistance

How we rate schools

A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.

See how we rate

The neighborhood

Where Granite Mountain Charter sits, and what the surrounding area looks like.

Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries.

Getting around & local context

  • Walk 5Car-Dependent
  • Bike 9Somewhat Bikeable
  • County Safety: Low231/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · county context, not school-level safety or attendance eligibility. Source details

Source period: 2024. A newer release may be available.

Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)

Median income

$46,625

Median home value

$239,100

Median rent

$1,138/mo

College educated

14.6%

Homeownership

67.3%

Poverty rate

36.1%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 92356; this is area context, not an attendance boundary.

Programs & students

Programs & Offerings

AP/IB Programs2AP courses offered
0.2% participation·State avg: 2.6 AP courses·CRDC via Urban Institute · SY 2021–22
Advanced STEM Courses5of 5 advanced subjects offered
Algebra II, Advanced Math, Calculus, Chemistry, Physics·CRDC via Urban Institute · SY 2021–22

Compare nearby

Nearby same-level schools

1 from a 5-mile search

SchoolScoreGradesDistanceEnrollmentCompare
Southern California Flex AcademyCharter · enrollment unverified7.3K–120.0 mi544Compare →

Distance is proximity only; it is not attendance eligibility.

Charter · enrollment unverified: Potential charter option; enrollment requirements have not been verified.

Granite Mountain Charter District

Schools in district
1
Rank in district
#1 of 1
District spending per student
$13,611NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
The source release did not match this district identifier.

Granite Mountain Charter is listed in Granite Mountain Charter District; a district label does not verify attendance for an address.

About Granite Mountain Charter

Granite Mountain Charter is a public school in Lucerne Valley, CA, part of Granite Mountain Charter District, serving approximately 3,942 students in grades Kindergarten-12th with a 28.6:1 student-teacher ratio. It holds a MySchoolScout rating of 6.0 out of 10 and ranks #5,386 of 9,539 schools in CA. State assessment records show 26% math proficiency (multi-year average, 2020-2024) and 44% reading/ELA proficiency (multi-year average, 2020-2024).

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 ranks #5,386 of 9,539 schools in CA.

What is Granite Mountain Charter's MySchoolScout rating?

Granite Mountain Charter has a current MySchoolScout rating of 6.0 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at Granite Mountain Charter?

Based on loaded state assessment records, Granite Mountain Charter has 26% math proficiency (multi-year average, 2020-2024) and 44% reading/ELA proficiency (multi-year average, 2020-2024).

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.

School factsNCES Common Core of Data (CCD) (SY 2023–24)

Grades
Kindergarten – 12th
Enrollment
3,942
Student-Teacher Ratio
28.6:1
Teachers (FTE)
138
Type
regular
Setting
Distant Rural
County
San Bernardino County
Chronic Absenteeism (SY 2022-23)
1.0%
4-Year Graduation
87.0%
Area population (ZIP 92356)
6,665
Area median age
40.9
About this school's data

Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.

School directory (enrollment, grades, staff, contact)
NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
  • Source period: SY 2023–24. A newer release may be available.
MySchoolScout rating and rank
MySchoolScout ranking model · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
Math proficiency
State department of education · 2024 CAASPP · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2024 CAASPP. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Reading/ELA proficiency
State department of education · 2024 CAASPP · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2024 CAASPP. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Student progress (growth)
NCES EdFacts · Mixed source periods · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
Neighborhood (income, housing, education)
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
  • Older source: ACS 2019–2023 5-year estimates. Use as historical context.
  • Reported for the ZCTA for ZIP 92356; this does not measure the attendance area.
Programs (AP/IB, athletics, gifted)
CRDC via Urban Institute · SY 2021–22 · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: SY 2021–22. A newer release may be available.

Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2020-2024; directory SY 2023–24

About our data · How we calculate scores

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