Enrollment
330
High
DISTRICT 170 · STATE 838
SCHOOL COMMUNITY·MAMMOTH UNIFIED·NCES 062353003568
Mammoth High
365 Sierra Park Rd., Mammoth Lakes, CA 93546 · (760) 934-6802 · Mono County
GRADES 09–12HIGH33-TOWNREGULAR SCHOOL330 STUDENTS
C
allk12 Grade
Scored higher than 30% of California public high schools
- BTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- DBeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- C+Three-year trend Change in reading and math proficiency over the last three test years.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded California public high schools
Student : Teacher
15.4:1
21 FTE teachers
DISTRICT 12.2:1 · STATE 18.2:1
Free / Reduced Lunch
38%
127 students
DISTRICT 41% · STATE 65%
Community
0
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 82 | 25% |
| Grade 10 | 85 | 26% |
| Grade 11 | 75 | 23% |
| Grade 12 | 88 | 27% |
Student demographics
48%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 50% · STATE 62% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Feeds from
Based on grade levels within Mammoth Unified. Attendance zones can vary; confirm enrollment with the district.
Test scores
CAASPP 2024-25 . % met or exceeded standardEnglish Language Arts
67.2%
CA avg 49.1% . +13.2pp since 2014
Math
24.3%
CA avg 37.7% . -9.7pp since 2014
What this means: On the CAASPP, California's statewide test, about 67 of every 100 students at this school read and write at grade level and about 24 of 100 do math at grade level. Across all California schools, those numbers are about 49 and 38. Reading and writing scores are up about 13 points since 2014, while math scores are down about 10 points.
Performance levels, 2024-25
| Subject | Standard Exceeded | Standard Met | Standard Nearly Met | Standard Not Met |
|---|---|---|---|---|
| English Language Arts | 31.3% | 35.8% | 20.9% | 11.9% |
| Math | 7.1% | 17.1% | 20.0% | 55.7% |
Share of tested students at each CAASPP level. Each student counts in one level, so a row adds to about 100%.
CAASPP results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 67.2% | 24.3% |
| 2023-24 | 54.5% | 21.8% |
| 2022-23 | 65.2% | 25.5% |
| 2021-22 | 64.4% | 28.8% |
| 2020-21 | 70.6% | 27.9% |
| 2018-19 | 59.0% | 23.1% |
| 2017-18 | 43.9% | 26.5% |
| 2016-17 | 51.5% | 27.3% |
| 2015-16 | 66.0% | 27.0% |
| 2014-15 | 54.0% | 34.0% |
% met or exceeded standard, all students and all tested grades.
Source: CAASPP. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
UNDERPERFORMING
Bottom 10% of CA schools after controlling for student poverty
Actual proficiency
42.0%
composite math + reading, all grades
Predicted
57.0%
based on CA schools with similar FRL share
Beats by
-15.0pp
below demographic expectation
What this means: About 42% of students here test proficient in math and reading, below the roughly 57% typical for California schools with a similar share of low-income students. BeatsExpectations compares each school with others at the same poverty level, not by raw scores, so a school lands here when its results trail those comparable schools, which is not the same as having low scores. A higher-scoring school can still fall in this tier if similar schools score higher still.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Mammoth High
Mammoth High's state test result (42.0% proficient) is higher than 1 of the 3 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Mammoth High this school | 330 | 38.5% | 42.0% |
| Mountain Empire High Pine Valley | 412 | 42.0% | 27.6% |
| Saint Helena High St. Helena | 416 | 36.8% | 50.4% |
| Tide Academy Menlo Park | 212 | 40.1% | 52.0% |
| Architecture Construction & Engineering Charter High (ACE) Camarillo | 266 | 36.1% | N/A |
| Lemoore Middle College High Lemoore | 255 | 39.6% | N/A |
Matched among California high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Mammoth High ranks
Among high schools| Measure | This school | In California |
|---|---|---|
| State test proficiency ranked highest first | 42.0% | #477 of 1,052 |
| Math proficiency ranked highest first | 24.3% | #554 of 1,056 ▲ 9 |
| Reading proficiency ranked highest first | 67.2% | #312 of 1,056 ▲ 238 |
| 3-year test score change ranked biggest drop first | -0.9pp | #332 of 1,044 |
| Enrollment ranked largest first | 330 | #1,177 of 2,093 |
| Students per teacher ranked fewest first | 15.4:1 | #118 of 1,352 |
| Diversity index ranked most diverse first | 48.1% | #712 of 1,351 |
| Free and reduced lunch ranked highest share first | 38.5% | #1,308 of 1,575 |
| Enrollment change since 2017-18 ranked steepest decline first | -10.1% | #455 of 802 |
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
330
-33 (-9%) vs 2020
-12% since 1990-91, when it was 374
Student : Teacher
15.4:1
was 19.1:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 330 | 21.4 | 15.4:1 | 38% (127) |
| 2023-24 | 351 | 22.7 | 15.5:1 | 48% (167) |
| 2022-23 | 351 | 19.2 | 18.3:1 | 55% (194) |
| 2020-21 | 363 | 19 | 19.1:1 | 33% (121) |
| 2017-18 | 367 | 18.5 | 19.8:1 | 46% (169) |
| 2015-16 | 331 | 20 | 16.6:1 | 53% (175) |
| 2010-11 | 287 | N/A | N/A | 48% (138) |
| 2000-01 | 356 | 17 | 20.9:1 | 21% (73) |
| 1990-91 | 374 | 16 | 23.4:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Mammoth High.
Since 2017-18: students down 10% (367 to 330); teachers up 15% (18.5 to 21.4).
About Mammoth High
Mammoth High is a small high school with an address in Mammoth Lakes, California. Enrollment in 2024-25 was 330 students in grades 9 through 12. Against the 838-student average for high schools in California, enrollment here is 61% lower.
Mammoth Unified has a total of 4 schools and 1,087 students, Mammoth High among them.
At 65%, Hispanic students outnumber all other groups at Mammoth High combined. After that, the student body is 31% White and 2% Asian. Among all residents of Mono County, the Hispanic share is about 27%. Mammoth High has a diversity index of 48%, compared with 70% for all US public school students.
The school's student-to-teacher ratio is about 15.4:1, with 21.4 full-time-equivalent teachers. The average ratio among high schools in California is 18.2:1, higher than at this school. Students eligible for free or reduced-price lunch make up 38% of enrollment.
Measured against California public high schools, Mammoth High receives a C. The grade weighs proficiency most heavily, then how results compare with what the school's low-income share predicts, then the three-year change.
Compared with California schools that have similar shares of low-income students, Mammoth High scores 15.0 points lower than predicted. Its average proficiency rate on state tests is 42.0%; the prediction is 57.0%.
Mono County has these Census figures: median household income is about $99,415, the share of adults with a bachelor's degree or higher is 32%, and roughly 7% of residents are in poverty. Mammoth High is among the 15 public schools in Mono County.
Mammoth Middle is the nearest neighboring public school, about 0.1 miles away. A five-mile radius around the school includes 4 other public schools. Nearby schools average 47.8% on proficiency, and Mammoth High is below that at 42.0%.
Mammoth High has an NCES locale of Town: Remote.
The student count in 2024-25 was 330, 9% below the 363 of 2020-21. Over the same period, the student-to-teacher ratio fell to 15.4:1, from 19.1:1.
The discussion area below is open to posts about school events, clubs, and volunteer needs. Questions from prospective families are welcome too.
Mono County at a glance
View full county profilePopulation
13,148
Census ACS
Median income
$99,415
Household, ACS
Bachelor's+
32%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
15
1,446 students
Quick facts
Related schools
Other schools in Mammoth Unified
- Mammoth ElementaryElementary · 505 students
- Mammoth MiddleMiddle · 243 students
- Sierra High (Continuation)High · 9 students
Other schools in Mammoth Lakes
- Mammoth ElementaryElementary · 505 students
- Mammoth MiddleMiddle · 243 students
- Jan Work CommunityHigh · 11 students
- Sierra High (Continuation)High · 9 students
- MCOE State PreschoolsElementary
- Mono County Office of Education Inclusive PreschoolCombined
Nearby schools
- Mammoth Middle0.1 mi · 243
- Jan Work Community0.2 mi · 11
- Sierra High (Continuation)0.2 mi · 9
- Mammoth Elementary0.3 mi · 505
- Lee Vining Elementary23.3 mi · 101
- Lee Vining High23.7 mi · 35
Frequently asked questions
About Mammoth HighHow large is Mammoth High?
Mammoth High enrolls approximately 330 students in grades 09-12.
Is Mammoth High an elementary, middle, or high school?
Mammoth High is a high school covering grades 09-12.
How many teachers does Mammoth High have?
Mammoth High employs 21 FTE teachers, for a student-to-teacher ratio of 15.4:1.
What is the racial breakdown of students at Mammoth High?
At Mammoth High, the student body is approximately 31% White, 65% Hispanic, 2% Asian, 2% Two or more.
Who oversees Mammoth High?
Mammoth High is overseen by Mammoth Unified in Mono County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.