Enrollment
9
California · 2024-25 NCES data
High school (grades 9-12) · Mammoth Lakes, CA
Sierra High (Continuation)
Federal NCES profile for Sierra High (Continuation), including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 51/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 062353010259
👥 S:T ratio 64
📚 AP courses 10
🌟 Gifted program 30
🎓 Counselors 98
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Sierra High (Continuation) earns 51/100 on the Resource Investment Index, with class sizes smaller than 96% of California schools. It is also one of the smallest schools in California.
- #1 of 5
- public schools in Mammoth Lakes · Resource Index
- 51
- Resource Index · Higher
- 9:1
- small classes for California
- 66.7%
- free-lunch eligible
Sierra High (Continuation) has class sizes smaller than 96% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Sierra High (Continuation) ranks #1 of 5 public schools in Mammoth Lakes, CA.
School address
District: Mammoth Unified · California
NCES ID 062353010259 Verify on NCES CCD record →
Teachers (FTE)
1.0
Federal CCD staff survey
Students per teacher
9:1
vs 21.5:1 California avg
-58% vs state
Free-lunch eligible
66.7%
vs 55.5% California avg
+20% vs state
Student-teacher ratio in context
How Sierra High (Continuation) compares with California and U.S. medians
What stands out at Sierra High (Continuation)
Sierra High (Continuation) is a higher-need, small high school in Mammoth Lakes, California, enrolling 9 students.
Classes run notably small here: at 9:1, Sierra High (Continuation) is leaner than roughly 96% of California schools and 58% under the state's 21.5:1 norm, more adult attention per pupil than most peers.
Economic need runs somewhat above the state's typical profile, with 66.7% of students eligible for free meals.
This is a small campus: fewer students than 99% of California schools, with 9 enrolled.
Its Resource Investment Index outscores 98% of the 9,998 California schools with a score on record, a top-tier result on this measure.
Against 41 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #6.
Its student body is predominantly Hispanic or Latino (100% of enrollment), among the less diverse in the state (diversity index 0/100).
No Advanced Placement courses are reported for this campus in the federal data.
Counselor coverage is strong, about 10 students per counselor, inside the American School Counselor Association's recommended 250:1.
Among Mammoth Lakes's high schools, it stands alongside Mammoth High (330 students): Sierra High (Continuation) is smaller than that campus by headcount and runs leaner classes (9:1 vs 17.4:1).
Mammoth Unified also operates Mammoth Elementary (505 students) and Mammoth High (330 students) alongside Sierra High (Continuation).
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Sierra High (Continuation) compares
Sierra High (Continuation) on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 9:1 | ▼ 58% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 66.7% | ▲ 20% | 55.5% | 51.7% |
| Enrollment | 9 | top 99% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
9:1
Leaner classes than 93% of US schools, among the more generously staffed nationally.
9
Bigger than 1% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Economic need
66.7%
free-lunch eligible
- 20% above the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
9:1
students per teacher
- 58% below state mean
Top 4% in California - lower ratio than 96% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Funding equity
$15,263
per pupil, district-wide
- below California avg of $16,509
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors0.9 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
Hispanic or Latino 100.0%
Largest group: Hispanic or Latino at 100.0% of enrollment.
Student-body diversity index 0.0/100
Simpson diversity index - at 0.0, Sierra High (Continuation) is less mixed than the California school average of 46.0.
Programs
AP program Not offered
Funding & spending
District-wide per-pupil expenditure for Mammoth Unified, which includes Sierra High (Continuation).
$15,263
Per student
-8%
vs California
Avg $16,509
-8%
vs U.S.
Avg $16,593
Revenue mix
Local 82.4%
State 10.5%
Federal 7.1%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Sierra High (Continuation) Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Mammoth Elementary | Larger | Lower economic need | Higher S:T ratio |
| Mammoth High | Larger | Lower economic need | Higher S:T ratio |
| Mammoth Middle | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to Sierra High (Continuation)'s own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 505
- Students per teacher
- 21:1
- Resource Index
- 15/100
- Enrollment
- 330
- Students per teacher
- 17.4:1
- Resource Index
- 35/100
- Enrollment
- 243
- Students per teacher
- 20.3:1
- Resource Index
- 31/100
Similar high schools in Mammoth Lakes
1 comparable high schools (grades 9-12) serving the same city.
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of California, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~9 students)
Similar student-teacher ratio (~9:1)
Next steps
Verify locally before acting on Sierra High (Continuation)'s federal record.
- Compare Sierra High (Continuation) against another school. Compare schools
- Mammoth Unified's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Sierra High (Continuation)
How many students attend Sierra High (Continuation)?
Sierra High (Continuation) has 9 students enrolled. It is a high school in Mammoth Lakes, CA.
What is the student-teacher ratio at Sierra High (Continuation)?
The student-teacher ratio at Sierra High (Continuation) is 9:1, which is 58% lower than the California average of 21.5:1 and 43% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Sierra High (Continuation)?
66.7% of students at Sierra High (Continuation) are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Sierra High (Continuation)?
The largest demographic group at Sierra High (Continuation) is Hispanic or Latino at 100.0% of enrollment, in Mammoth Lakes, CA.
What is the Resource Investment Index for Sierra High (Continuation)?
Sierra High (Continuation) has a Resource Investment Index of 51/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Sierra High (Continuation) rank among public schools in Mammoth Lakes?
By Resource Investment Index, Sierra High (Continuation) ranks #1 of 5 public schools in Mammoth Lakes, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Mammoth Lakes on the city page.
Is Sierra High (Continuation) a good school?
Sierra High (Continuation) earns 51/100 on the Resource Investment Index, with class sizes smaller than 96% of California schools. It is also one of the smallest schools in California. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Mammoth Unified?
Besides Sierra High (Continuation), Mammoth Unified also operates Mammoth Elementary (505 students), Mammoth High (330 students), and Mammoth Middle (243 students). See the Mammoth Unified district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.