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. District totals are aggregated directly from the schools reporting under this district in the source records. See our
editorial standards & corrections policy, the
methodology behind these numbers, or
report a data error. Data current as of June 2026.
Mammoth Lakes, California - 4 schools
An equity score of 48/100 ranks Mammoth Unified #817 of 1517 districts in California (state average 50). Derived live from how evenly resources are distributed across the district's schools.
At $15,263 per pupil, Mammoth Unified ranks #909 of 1862 California districts by per-pupil spending (California districts). NCES F-33 finance data.
1,118
Total Enrollment
4
Schools
$15,263
Per-Pupil Spending
High, Elementary
School Types
District-Level NCES Analysis
Mammoth Unified operates 4 public schools serving 1,118 students, placing it among the smallest districts in California. The school portfolio breaks down into 2 high, 1 elementary, 1 middle schools, a small enough portfolio that most families will interact with nearly every campus in the district at some point. These enrollment and school figures come from the NCES Common Core of Data (CCD) 2024-25 release, and the district is based in Mono County.
Per-pupil expenditure runs $15,263 according to the NCES F-33 School District Finance Survey, in the upper half of 1862 California districts by per-pupil spending. See how California compares in our national per-pupil spending analysis. The funding mix is 82.4% local, 10.5% state, and 7.1% federal, a local-revenue-heavy mix that leaves the district more exposed to property-tax swings and local ballot measures than state-funded peers. The district's equity score is 48/100, ranked #817 of 1517 in California against a state average of 50, in line with the typical spread seen across the state for how evenly funding reaches its schools.
Academic infrastructure includes 1 of 4 schools offering Advanced Placement (5 AP courses district-wide), a 170:1 student-counselor ratio, that meets the ASCA-recommended benchmark, and 32.8% chronic absenteeism from the 2021-22 Civil Rights Data Collection. Demographically, the student body averages 71.6% Hispanic or Latino, 25.6% White, 0.8% Asian across the district's schools. Its most demographically mixed campus is Mammoth Elementary, with a diversity index of 51.4/100.
Its largest campus is Mammoth Elementary, enrolling 505 students (46% of the district's total enrollment). Its smallest is Sierra High (Continuation), at 9 students, a 56x enrollment spread across the district's campuses.
Mammoth Elementary accounts for 45.2% of all Mammoth Unified student enrollment
That is an overwhelming concentration, leaving the rest of Mammoth Unified a distant remainder — means Mammoth Unified-wide averages can mask substantial variation outside the dominant entity. Grade band: elementary. A single dominant campus often anchors a district's program offerings and staffing patterns; the share helps explain why district-wide averages may not reflect the typical neighbourhood-school experience. When one entity dominates a region's footprint, its programmatic and budget decisions effectively set policy for a majority of the affected population.
Mammoth Unified school enrollment varies 56× across entities
Mammoth Unified school enrollment ranges from 9 students (lowest) to 505 students (highest), a spread of 496 students. That ratio is among the widest observed and reflects extreme enrollment heterogeneity, the district operates both small specialty programs and large comprehensive campuses inside a single budgeting unit. Per-school staffing ratios, programme availability, and capital-renovation cycles often diverge inside the same district based on enrollment shape.
Mammoth Unified has higher-than-average Title I eligibility — 54.1% of the population qualifies for free or reduced-price lunch
free or reduced-price lunch eligibility is the federal threshold for Title I funding allocations, established under the Every Student Succeeds Act (ESSA, 2015). Areas above 75% eligibility receive concentration grants on top of the basic Title I formula. Regions with eligibility this high typically draw a substantially larger federal funding share relative to their local tax base, which can either offset or reinforce existing gaps depending on allocation policy.
Mammoth Unified student-counselor ratio is 170:1 — low (typically associated with meeting or exceeding the American School Counselor Association (ASCA) recommended 250:1 benchmark, which correlates with stronger college and career counseling capacity)
student-counselor ratio is the simplest comparative metric but it does not capture the full picture: the ratio counts FTE counselors against total enrollment, districts that contract intervention or social-emotional staff outside the counselor classification may be under-counted Lower values often correlate with smaller scale and population characteristics rather than higher resource budgets per se.
Mammoth Unified chronic absenteeism rate is 32.8% — high (typically associated with higher-than-average disruption; recent CRDC data showed elevated rates persisting after pandemic-era schooling changes)
chronic absenteeism rate is the simplest comparative metric but it does not capture the full picture: a student is chronically absent if they miss ≥10% of enrolled days for any reason, illness, family obligations, or disengagement Higher values may reflect larger urban scale or recent resource constraints that have widened the gap.