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Very Good

#3121 of 9,539 schools in CA

Top 33% in state

Mammoth High

High School · Mammoth Unified

PO Box 3149, Mammoth Lakes, CA 93546

Enrollment

351

Student-Teacher

16:1

Score

7.2

Grades

9th – 12th

Data vintage2022-23

How this school compares

California schools

#3,121 of 9,539

In Mammoth Lakes

#2 of 3

public schools

In district

#2 of 3

Mammoth Unified

School environment

9.5 / 10

Excellent

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Mammoth High

7.2/10

High School in Mammoth Lakes · grades 9th – 12th. Start here, then compare fit against nearby and district options.

Mammoth Middle

7.6/10

0.1 mi away. Use as a geographic alternative in the same move search.

Jan Work Community

Nearby

0.2 mi away. Use as a geographic alternative in the same move search.

About Mammoth High

Mammoth High is a public high school in Mammoth Lakes, CA, part of Mammoth Unified. Mammoth High serves approximately 351 students, and covers grades 9th-12th, and has a 16:1 student-teacher ratio. Mammoth High has a current MySchoolScout rating of 7.2 out of 10 and ranks #3,121 of 9,539 schools in CA.

Structured state assessment records for Mammoth High show 37% math proficiency (multi-year average, 2009-2024) and 59% reading/ELA proficiency (multi-year average, 2009-2024).

How it compares0.7 pts above CA schools
  • This school 7.2 · Very Good
  • CA avg 6.5

Score Breakdown

Full Profile · 4/4 metrics
Student Progress5.1Average25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data14
Annual Change-1.7 pts/yr
Data Period2009–2024
TrendDeclining
Academics5.9Average25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency21.8% (2024 CAASPP)
Reading/ELA Proficiency54.5% (2024 CAASPP)
Math vs. State Avg-6.2 pts
Reading vs. State Avg-1.4 pts
Overall Proficiency38% (2024 CAASPP, Math+ELA)
Expected (poverty-adj.)48% (model expectation from 2024 CAASPP)
vs. Expected-9.4 pts
Adjusted Percentile42th
College Readiness8.5Excellent30%
Graduation rates, AP course participation, and IB availability.
View breakdown
4-Year Graduation Rate95%+
AP Participation31.6%
IB ProgramNo
Resources & Environment9.5Excellent20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio16:1
Per-Pupil Spending$16,921
Chronic Absenteeism18.5%

Mammoth High — Students at Mammoth High score 38% proficient, which is below what's typical for similar communities (expected: 48%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

47.6%

Students qualifying for federal meal assistance

Test Scores CA CAASPP (2023-24)

Math Proficiency 37.0% (multi-year average, 2009-2024)
School
State
31.8% (2024 CAASPP)
ELA Proficiency 59.0% (multi-year average, 2009-2024)
School
State
51.5% (2024 CAASPP)

Based on 30 test records from CA state assessments. About our data

Proficiency Trend

→ Stable

Average proficiency (% at or above grade level) across Math & ELA over time.

2009
Math
47%
ELA
52%
2010
Math
62%
ELA
62%
2011
Math
72%
ELA
67%
2012
Math
62%
ELA
67%
2013
Math
57%
ELA
52%
2014
Math
32%
ELA
52%
2015
Math
27%
ELA
67%
2016
Math
27%
ELA
52%
2017
Math
27%
ELA
47%
2018
Math
22%
ELA
57%
2019
Math
22%
ELA
57%
2020*
Math
27%
ELA
72%
2021*
Math
27%
ELA
72%
2024
Math
21.8%
ELA
54.6%

* 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: 5.1/10.

How Mammoth High Compares

See how Mammoth High performs across key quality dimensions compared to state benchmarks.

Overall Score
7.2/10
67th percentile in CA
Academic
5.9/10
Average
Growth
5.1/10
Average
Environment
9.5/10
Excellent
AP Courses
4
State avg: 2.6
Advanced STEM
5/5
Subjects offered

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
48%
Teaching Staff
16:1 student-teacher ratio
22 teachers
Chronic Absenteeism
Students missing 15+ days per year (SY 2022-23)
18.5%

Programs & Offerings

AP/IB Programs4 AP courses offered
31.6% participation·State avg: 2.6 AP courses·CRDC 2021-22
Advanced STEM Courses5 of 5 advanced subjects offered
Algebra II, Advanced Math, Calculus, Chemistry, Physics·CRDC 2021-22

Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more

Location

PO Box 3149, Mammoth Lakes, CA 93546

Nearby Alternatives

Families considering Mammoth High may also want to explore other high schools in the area. Round Valley Elementary (rated 9.6/10, 25.8 miles away, in nearby Bishop), which scores notably higher. Another option is Lee Vining High (rated 8.3/10, 23.7 miles away, in nearby Lee Vining), which scores notably higher. Additionally, Lee Vining Elementary (rated 7.8/10, 23.3 miles away, in nearby Lee Vining), which scores slightly higher. For more schools in Mammoth Lakes, see our Mammoth Lakes schools guide .

Nearby Schools

9 within 34.1 mi
School Distance Rating
Mammoth Middle Mammoth Lakes 0.1 mi 7.6
Jan Work Community Mammoth Lakes 0.2 mi
Sierra High (Continuation) Mammoth Lakes 0.2 mi
Mammoth Elementary Mammoth Lakes 0.3 mi 5.4
Lee Vining Elementary Lee Vining 23.3 mi 7.8
Lee Vining High Lee Vining 23.7 mi 8.3
Round Valley Elementary Bishop 25.8 mi 9.6
Edna Beaman Elementary Benton 29.2 mi
Big Creek Elementary Big Creek 34.1 mi

Neighborhood Census ACS (2019-2023)

Census data for ZIP 93546 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$96,481

Median Home Value

$618,800

Median Rent

$1,619/mo

Population

8,803

College Educated

31.1%

Homeownership

64.7%

Poverty Rate

11.2%

Median Age

38.3

Similar Schools

Schools in the same state with comparable level, size, and ratings

Frequently Asked Questions

Common questions about Mammoth High

What grades does Mammoth High serve?

Mammoth High serves students in grades 9th through 12th.

How many students attend Mammoth High?

Mammoth High has an enrollment of approximately 351 students.

What is the student-teacher ratio at Mammoth High?

The student-teacher ratio at Mammoth High is 16:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Mammoth High rank in CA?

Mammoth High ranks #3,121 of 9,539 schools in CA.

What is Mammoth High's MySchoolScout rating?

Mammoth High has a current MySchoolScout rating of 7.2 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 Mammoth High?

Based on loaded state assessment records, Mammoth High has 37% math proficiency (multi-year average, 2009-2024) and 59% reading/ELA proficiency (multi-year average, 2009-2024).

Is Mammoth High a charter school?

No, Mammoth High is not a charter school. It is a traditional public school operated by the local school district.

Is Mammoth High a Title I school?

No, Mammoth High is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Mammoth High?

47.6% of students at Mammoth High qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

10 schools nearby View map →

Neighborhood Context

Walk Score
71 Very Walkable
Bike Score
92 Biker’s Paradise

Powered by Walk Score

Quick Facts NCES CCD (SY 2022-23)

Grades
9th – 12th
Enrollment
351
Student-Teacher Ratio
16:1
Teachers (FTE)
22
Free/Reduced Lunch
47.6%
Type
regular
Setting
Remote Town
County
Mono County
Chronic Absenteeism (SY 2022-23)
18.5%
4-Year Graduation
95%+

District

Mammoth Unified
District Enrollment
1,112
Schools in District
4
Per-Pupil Spending
$16,921
District Rank
#2 of 3

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