Enrollment
505
California · 2024-25 NCES data
Elementary school (grades K-5) · Mammoth Lakes, CA
Mammoth Elementary
Federal NCES profile for Mammoth Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 15/100.
2024-25 NCES dataElementary school (grades K-5)NCES 062353003567
👥 S:T ratio 16
🌟 Gifted program 30
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mammoth Elementary earns 15/100 on the Resource Investment Index, with class sizes near the California median.
- #5 of 5
- public schools in Mammoth Lakes · Resource Index
- 15
- Resource Index · Lower
- 21:1
- students per teacher
- 43.7%
- free-lunch eligible
Mammoth Elementary has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Mammoth Elementary ranks #5 of 5 public schools in Mammoth Lakes, CA.
School address
District: Mammoth Unified · California
NCES ID 062353003567 Verify on NCES CCD record →
Teachers (FTE)
24.0
Federal CCD staff survey
Students per teacher
21:1
vs 21.5:1 California avg
-2% vs state
Free-lunch eligible
43.7%
vs 55.5% California avg
-21% vs state
Student-teacher ratio in context
How Mammoth Elementary compares with California and U.S. medians
What stands out at Mammoth Elementary
Mammoth Elementary is a mid-sized elementary school in Mammoth Lakes, California, enrolling 505 students.
At 21:1, its student-teacher ratio sits close to the California median, within a few percentage points of the 21.5:1 state norm, neither notably crowded nor notably small.
Economic need runs somewhat below the state's typical profile, with 43.7% of students eligible for free meals.
With 505 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index trails 91% of the 9,998 California schools with a score on record, one of the lower results on this measure.
Among 1,379 similarly sized, similarly resourced-need California schools statewide, it ranks #1,207, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (58%) and White (39%) (diversity index 51/100).
Chronic absenteeism is elevated: 54.5% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Mammoth Unified also operates Mammoth High (330 students) and Mammoth Middle (243 students) alongside Mammoth Elementary.
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 Mammoth Elementary compares
Mammoth Elementary on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 21:1 | ▼ 2% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 43.7% | ▼ 21% | 55.5% | 51.7% |
| Enrollment | 505 | top 44% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
21:1
Leaner classes than 13% of US schools, heavier class loads than most.
505
Bigger than 62% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
43.7%
free-lunch eligible
- 21% below the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
21:1
students per teacher
- 2% below state mean
Top 43% in California - lower ratio than 57% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
54.5%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
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
Counselors0.0 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 58.0%
White 38.6%
Two or More 2.4%
Asian 0.8%
American Indian / Alaska Native 0.2%
Largest group: Hispanic or Latino at 58.0% of enrollment.
Student-body diversity index 51.4/100
Simpson diversity index - at 51.4, Mammoth Elementary is more mixed than the California school average of 46.0.
Programs
Funding & spending
District-wide per-pupil expenditure for Mammoth Unified, which includes Mammoth Elementary.
$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 Mammoth Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Mammoth High | Smaller | Similar economic need | Lower S:T ratio |
| Mammoth Middle | Smaller | Higher economic need | Similar S:T ratio |
| Sierra High (Continuation) | Smaller | Higher economic need | Lower S:T ratio |
Comparisons are relative to Mammoth Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 330
- Students per teacher
- 17.4:1
- Resource Index
- 35/100
- Enrollment
- 243
- Students per teacher
- 20.3:1
- Resource Index
- 31/100
- Enrollment
- 9
- Students per teacher
- 9:1
- Resource Index
- 64/100
Similar elementary 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 (~505 students)
Similar student-teacher ratio (~21:1)
Next steps
Verify locally before acting on Mammoth Elementary's federal record.
- Compare Mammoth Elementary 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 Mammoth Elementary
How many students attend Mammoth Elementary?
Mammoth Elementary has 505 students enrolled. It is an elementary school in Mammoth Lakes, CA.
What is the student-teacher ratio at Mammoth Elementary?
The student-teacher ratio at Mammoth Elementary is 21:1, which is 2% lower than the California average of 21.5:1 and 34% higher 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 Mammoth Elementary?
43.7% of students at Mammoth Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Mammoth Elementary?
The largest demographic group at Mammoth Elementary is Hispanic or Latino at 58.0% of enrollment, in Mammoth Lakes, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 51.4/100.
What is the Resource Investment Index for Mammoth Elementary?
Mammoth Elementary has a Resource Investment Index of 15/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Mammoth Elementary rank among public schools in Mammoth Lakes?
By Resource Investment Index, Mammoth Elementary ranks #5 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 Mammoth Elementary a good school?
Mammoth Elementary earns 15/100 on the Resource Investment Index, with class sizes near the California median. 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 Mammoth Elementary, Mammoth Unified also operates Mammoth High (330 students), Mammoth Middle (243 students), and Sierra High (Continuation) (9 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.