Mammoth High School

Mammoth Lakes · Mono County · Mammoth Unified · Public

Public Mono County Mammoth Unified → ~88 seniors CDS 2673692…
Shareable scorecard →

AP rigor: 80th percentile nationally 9 AP courses 97% 4-yr grad rate

A parent's read

  • About 2 in 3 students read and write at grade level. On the state's own 11th-grade test, 67% met or exceeded the college-readiness bar — well above the state as a whole (statewide: 54%).
  • Most grads aim beyond the UC system. Seniors file only ~0.7 UC applications each — families here mostly target CSU, private, or out-of-state colleges, so judge this school on more than its UC numbers.
  • Worth asking about: the recent trend. UC admissions per senior have slipped for three straight years. Ask the school what changed — counseling, course access, or just class-size shifts.

Composed from this page's data — every claim is backed by a number in the sections below.

At a glance

Programs & features
  • 9 AP courses offered — Elite
  • Dual-enrollment program (college credit while in HS)
  • 4 calculus classes · 2 physics · 4 chemistry
Academic signals
  • AP rigor: 80th percentile nationally
  • SAT/ACT participation: Bottom 23% by test-taker volume
  • 4-yr grad rate: 97% in 2019 (90th percentile nationally)

Composed from federal CRDC offerings, EDFacts graduation data, and other public data. Full breakdowns below.

Where grads go — and what it costs & pays

UC Reach Score
10
Below the CA median below the state median
Top-6 UC admits per 100 seniors in the Class of 2025 — counts each campus admit, so a student admitted to several UCs counts more than once (which is why a strong school can score over 100).

UC admits by campus · Class of 2025

UCSB
3 admitted
Net $16,109/yr avg
Grads earn $74,915 @10yr
UCD
6 admitted
Net $14,741/yr avg
Grads earn $80,838 @10yr

Getting in is step one. The cost above is the average aid-receiving family's net price — yours depends on whether you qualify for aid — and your child's odds depend on their GPA + scores. See your family's real numbers at these campuses:

Get my child's odds + our real costs →

Sources: UC Office of the President (admits); IPEDS net price + College Scorecard 10-yr earnings (cost & payoff). Full campus-by-campus breakdown below.

California College-Going Rate

56% of the 2022-23 graduating class enrolled in college within a year.

The share of 2022-23 graduates who enrolled at a college anywhere in the U.S. within 12 months, per the National Student Clearinghouse match the California Department of Education publishes.

Within 12 months
56%
of 75 graduates

Give the same class four more months and 60% had enrolled — CDE publishes a 16-month window alongside the 12-month one, 45 students.

Down 2.6 points from the 2021-22 class (58.6%).

Where the 2022-23 class enrolled

In California — 28 students (37.3%)

University of California 9.3% 7
California State University 9.3% 7
California Community College 17.3% 13
California private college 1.3% 1

Out of state — 14 students (18.7%)

Out-of-state 4-year 14.7% 11
Out-of-state 2-year 4.0% 3

CDE puts each graduate in one bucket only — whichever kind of college they were enrolled in longest — so these add up to the rate above. That is a different count from the UC Reach Score on this page, which counts a student at every UC campus that admitted them.

Source: California Department of Education, College-Going Rate (DataQuest) ↗, cohort 2022-23, posted 17-Sep-2025. Data file: cgr12mo23.txt ↗ (and the 16-month file ↗). CDE builds the rate by matching California high school completers to National Student Clearinghouse enrollment records; we publish CDE’s aggregates and hold no student-level data.

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How Mammoth High School compares for families

Real college outcomes data available below.

  • StatewideUC Reach Score of 10 — 9 points below the California median of 19.
  • vs Similar SchoolsRight at the peer median (UC Reach Score 13) across the 5 most similar nearby schools.

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Academic rigor

AP + advanced-course offerings

Elite — exceptional AP + advanced course breadth

80th percentile nationally

50th 90th ↑ this school
Less rigorMore rigorMost rigor
AP courses offered
9
Math ✓ · Science ✓
Students taking AP courses
111
≈34 per 100 students · uptake, not just offerings
Advanced math classes
15
4 calculus · 11 advanced
Lab science classes
6
2 physics · 4 chemistry
Other rigor signals
Dual-enrollment program

Source: federal Civil Rights Data Collection (CRDC 2020-21). CRDC reports what's offered + enrolled — it doesn't collect AP exam pass rates (College Board owns that data and doesn't release it school-level).

SAT / ACT participation

CRDC federal data · 2020-21

Bottom 23% by test-taker volume

50th 90th
SAT/ACT test-takers
19
11th-12th graders who took 1+ college admissions test
Test-taking intensity
5.8
takers per 100 students in grades 9-12
Compared against
18,426
US high schools reporting SAT/ACT participation

Source: federal Civil Rights Data Collection (CRDC 2020-21). Volume — not score — is what's reported here. A higher count means more students at this school are entering the college admissions pipeline. Note: 2020-21 was COVID-disrupted; some districts (especially those that stayed remote longer) report unusually low or zero takers.

4-year graduation rate · federal EDFacts

What % of students graduate on time?

90th percentile nationally

50th 90th
4-year graduation rate
97%
Range: 95–100%
4-year cohort size
82
Students in the 9th-grade entry class tracked over 4 years
Compared against
17,988
US high schools reporting 4-year ACGR

Source: federal EDFacts ACGR (Adjusted Cohort Graduation Rate), 2019 vintage via Urban Institute. EDFacts publishes a range (low-high) to preserve privacy on small cohorts; we display the midpoint.

Federal Title I context

Title I Targeted Assistance eligible

35-39% FRPL — qualifies for Title I Targeted Assistance

38.5%
FRPL rate — % of students who qualify for the federal Free or Reduced-Price Lunch program. This is the underlying federal income-eligibility signal Title I designations are computed from (ESEA Sec. 1113).
0% (no FRPL) 35% TA · 40% Schoolwide 100% (universal FRPL)

35-39% of students qualify for free/reduced lunch. The school can receive Title I funds targeted to identified students (not schoolwide).

Source: NCES Common Core of Data, free/reduced-price lunch eligibility. The actual Title I designation is a district decision and may differ from eligibility — but the federal eligibility math is what we show here. We don't claim to assert whether the district formally chose to enroll this school in Title I.

SBAC academic outcomes — grade 11, 2025

Share of grade-11 students meeting or exceeding the California standard on Smarter Balanced ELA and Math. This is the academic-readiness signal that pairs with UC Reach (post-grad outcomes), stability (retention), and absenteeism (engagement). Note: statewide median Math is only ~20% — a school at 20% isn't an outlier; one at 45%+ genuinely is.

About 2 in 3 students read and write at grade level — above the state norm.
About 1 in 4 students do math at grade level — about the state norm.
ELA — met or exceeded
n = 67
67.2%
incl. 31.3% exceeded
On the Mono County median (67.2%) · CA median 54.5% · Top 10% statewide ≥ 79.4%
Math — met or exceeded
n = 70
24.3%
incl. 7.1% exceeded
On the Mono County median (24.3%) · CA median 21.4% · Top 10% statewide ≥ 53.6%

Source: California Assessment of Student Performance and Progress (CAASPP) Smarter Balanced research files. Benchmarks limited to non-virtual public & charter HS with ≥30 tested students.

Student composition — 2025-26

HS grades 9–12 racial/ethnic composition and program subgroups, from CDE Census Day Enrollment. Two-year shift shown when ≥1 pt — surfaces how the community served has changed since 2023-24.

Race / ethnicity

Hispanic / Latino 65% +1.5
White 29% -3.9
Two or more 3% +2.1
Asian 2%

Program subgroups

Socioeconomically disadv. 50% -4.1
English learners 13% -3.0
Students w/ disabilities 8% -2.8

Source: California Department of Education, Census Day Enrollment 2025-26 (HS grades 9–12). Δ shown when shift is ≥1 pt since 2023-24. Categories below 0.5% omitted.

Chronic absenteeism — 2024-25

Share of students missing 10% or more of expected attendance — the leading indicator that often precedes the demand decline shown above. Families disengaging tend to raise absenteeism first, then formally leave. Basis: grades 9–12.

28% of students are chronically absent — near the state norm of about 23%.
Chronic absent
27.8%
97 of 349 students

Absenteeism is up 14.6 pp since 2016-17. A rising absenteeism trend often precedes formal departure — worth investigating which subgroups are driving it.

Mono County median
26.1% · school is worse than 50% of 2 HS
Statewide median
22.8%

Source: California Department of Education, Chronic Absenteeism 2024-25. Benchmarks limited to non-virtual public & charter HS with ≥100 eligible students. CDE didn't publish a usable 2019-20 file (COVID).

Enrollment trend & projection

Total enrollment (9–12)
367 (2018)308 (2026)
-16.1%
Grade 12 (graduating class)
79 (2018)79 (2026)
+0.0%

If this trend holds (-1.6%/yr, Total enrollment)

At per-pupil funding of $ / student:

Horizon Projected Total enrollment Change Funding impact / yr
1 yr (2027) ~303 -5 $0
3 yr (2029) ~293 -15 $0
5 yr (2031) ~284 -24 $0

Straight-line extrapolation of the recent annual rate — a what-if, not a forecast of intent. Default = California's LCFF base grant for grades 9–12 ($12,423/ADA). Edit the figure to match your school.

How does Mammoth High School really compare on getting kids to college?

We've ranked it #3 of 5 most similar nearby schools on UC Reach. Unlock the full snapshot to see the head-to-head — who's ahead, by how much, and where it's heading.

The full head-to-head table — every peer school's UC Reach, side by side.
Enrollment trend + 3-year projection — is this school growing or quietly shrinking?
The plain-English read on what it all means for your family.

Your similar-school group includes

Minarets High School · Career Technical Education Charter · Endeavor Charter · Sierra High · Carter G. Woodson Public Charter · Gateway High (continuation) · +4 more

Objective, government-grade data — no school pays us for placement. We'll email you the snapshot and a few alerts a year. Unsubscribe anytime.

Enrollment stability & demand — 2024-25

Two complementary signals: retention (do students stay once enrolled?) and demand (are families choosing the school?). Read against the Mono County baseline — the demographic tide is moving every CA HS, so a school's gap vs. county is the actionable signal.

89% of students who start the year here finish it here.
Healthy
Best in class — winning on demand and retention.

Mammoth High School outperformed Mono County on enrollment (school +0.0% vs. county -42.4%) AND maintains 89.2% stability. Replicable model — worth documenting what's working. Chronic absenteeism is rising (27.8%, +14.6 pts since 2016-17) — a watch signal worth monitoring as a leading indicator.

+0.0%  senior class, grade 12 (2018–2026)
-42.4%  Mono County baseline
+42.4pp  gap vs. county
89.2%  retention (county median 66.1%)
Senior class (grade 12) — indexed to 100 at 2018
Stability rate
89.2%
314 of 352 students

38 of 352 students who enrolled at Mammoth High School this year didn't maintain continuous enrollment (10.8% non-stability). Mid-year transfers, dropouts, and other exits are all counted.

Mono County median
66.1% · school is in the 100th percentile of 2 HS
Statewide median
87.3% · in the 60th percentile of 1,734 HS

Stability by student group

Hispanic / Latino (230) 86.5%
Socio. disadvantaged (191) 85.9%
White (108) 93.5%
English learners (67) 79.1%
Students w/ disabilities (44) 93.2%

Nearest peer high schools

Minarets High School 87.1% Career Technical Education Charter 91.1% Endeavor Charter 84.7% Sierra High 76.6% Carter G. Woodson Public Charter 58.0%

Source: California Department of Education, Stability Rate 2024-25. Benchmarks limited to non-virtual public & charter HS with ≥100 cumulative enrollees so by-design-high-churn continuation schools don't dominate the bottom of the distribution. Cumulative enrollment counts every student on the rolls during the year, so it can exceed peak-day enrollment.

District financial profile — Mammoth Unified (FY2020)

From 4 years of NCES F-33 filings (the federally-mandated district finance survey). Public schools don't have their own books — the district does. These figures show the financial scale, revenue dependence, instruction-vs-overhead mix, and long-term debt that shape what a school can sustain.

Total revenue
$22.8M
+25.4% since FY2017
Per-pupil revenue
$20,390
1,119 students enrolled
Revenue mix
State: 14.9%
Local: 77.7%
Federal: 7.4%
Instruction share
60.2%
of current spending · $8,701/pupil
Long-term debt
$47.2M
+186.6% since FY2017
Total revenue by year ($M)
Total expenditure by year ($M)

Source: NCES F-33 Annual Survey of School System Finances (Urban Institute Education Data API). Latest year currently published: FY2020. F-33 is a district-level federal filing — it reflects the Mammoth Unified as a whole, not this individual school's books. Revenue mix shows where the district's dollars come from (state aid dominates in CA via LCFF). Instruction share is current expenditure on instruction ÷ total current expenditure (national benchmark ~60%). Long-term debt is end-of-year outstanding (mostly facilities bonds).

Key takeaway · Class of 2025

Mammoth High School sent 60 applications to the six most selective University of California campuses and 15.0% were admitted, producing a UC Reach Score of 10 (top-6 UC admits per 100 seniors, counting a student at each campus that admitted them) — 9 points below the California median of 19, higher than 18% of California high schools..

UC Reach Score 10 9 admits (counted at each UC) / 88 seniors -3 pts vs. peer median (13) · #3 of 5 similar schools methodology
Where this sits on the California curve
CA median
19
Peer median
13
Top 10%
53
This school
10
050100
CA median 19 Top 10% ≥ 53 This school 10

Higher than 18% of California high schools (1107 ranked, ≥50 seniors)

What this number means

Mammoth High School's UC Reach Score of 10 is below the California median (19). The top 10% of CA schools achieve 53 or higher.

Overall, Mammoth High School's UC Reach is higher than 18% of California high schools (1107 ranked).

UC Application Reach Score
68
60 applications
In context: CA median 81 · Top 10% statewide ≥ 240 · higher than 42% of CA HS.
UC Admit Rate
15.0%
9 / 60 applications
In context: CA median 26.0% · Top 10% statewide ≥ 40.4% · higher than 1% of CA HS.
UC Yield Rate
N/A
— enrolled of 9 admitted
Yield vs. Enrollment Reach: Yield answers "of UC admits, what % chose UC?" — denominator is just the admits. A small admitted cohort can post a low yield even when the school sends a healthy share of its class to UC.
UC Enrollment Reach Score
N/A
— enrollees / 88 seniors
Enrollment Reach vs. Yield: Reach answers "of the whole senior class, what share ended up at UC?" — denominator is everyone. High Yield with low Enrollment Reach is common at elite privates: most admits matriculate, but the school sends most of its class to non-UC selective colleges.
Student-Counselor Ratio
About 308 students per counselor — typical for California, though well above the 250 experts recommend.
308:1
1.0 FTE counselors · 308 students
In context: CA median 337:1 · ASCA target 250:1.
A-G Completion
About half of graduates finish the UC/CSU course requirements — about the state norm.
52%
45 of 86 graduates · 2024-25 cohort
In context: CA median 55.9% · -3.6 pp vs. median.
Selective UC Reach (UCB, UCLA, UCSD, UCSB, UCI — incl. the Elite two)
3.4
per 100 seniors · campus-level total
In context: CA median 15.9 · Top 10% statewide ≥ 42.2 · higher than 2% of CA HS.
Elite UC Reach (UCB + UCLA)
N/A
Senior Class Size
88
CDE grade 12 (exact)
Total School Enrollment
330
All grades · CDE Census Day
Economic Connectedness
0.83
31st percentile in CA · cross‑class friendships
Avg. Applicant GPA · top-6 UCs
4.09
Avg. Admitted GPA · top-6 UCs
4.24

UC funnel — which kids are getting in at what GPA

Combining the school's applicant pool GPA, admit pool GPA, actual admit rate, and statewide CA admit rates by individual GPA band, we can read which GPA tiers tend to get in — and which don't.

Who's actually getting into UC from Mammoth High School
Campus 4.00+ GPA 3.70–3.99 GPA 3.30–3.69 GPA < 3.30 GPA
UC Berkeley Real shot Long odds Filtered out Filtered out
UC San Diego Strong shot Moderate Long odds Filtered out
UC Santa Barbara Strong shot Real shot Long odds Filtered out
UC Davis Strong shot Strong shot Real shot Filtered out
Strong shot = ≥30% statewide admit rate at this band · Real shot = 10–29% · Moderate = 5–9% · Long odds = 1–4% · Filtered out = under 1%. Tiers map this school's likely outcomes by GPA tier using statewide CA admit rates from UCOP 2025.

The numbers behind it

Campus Applicant GPA Admit GPA Lift Admit rate vs peer schools @ same GPA
UC Berkeley (2021) 4.09 4.27 +0.18 61.5% Peers +0.19 · matches
UC San Diego (2021) 4.15 4.32 +0.17 53.8% Peers +0.18 · matches
UC Santa Barbara (2023) 4.00 4.24 +0.24 47.1% Peers +0.25 · matches
UC Davis 4.20 4.24 +0.04 66.7% Peers +0.11 · wider
Statewide CA admit rates by individual GPA band, 2025 (for reference)
GPA band UCB UCLA UCSD UCSB UCI UCD
4.00+ 17.0% 15.1% 45.2% 62.3% 46.3% 65.9%
3.70–3.99 3.1% 1.6% 9.3% 17.6% 17.0% 31.1%
3.30–3.69 0.8% 0.5% 1.5% 2.8% 2.4% 10.3%
3.00–3.29 0.4% 0.3% 0.2% 0.4% 0.3% 1.9%
< 3.00 0.7% 0.4% 0.3% 0.2% 0.1% 0.7%
How we infer the tier labels: Each tier comes from the statewide CA admit rate at that GPA band at that UC. The "vs peers" column compares this school's lift (admit GPA − applicant GPA) to the average lift at ~100–300 other CA schools with similar applicant pool GPA. What this isn't: a guarantee. UC comprehensive review weighs essays, course rigor, demographics, and context-of-opportunity beyond GPA. A 3.9 with strong context can land an admit; a 4.0 with weak essays can be denied. Use as a baseline expectation, not a verdict. Per-campus year is shown when it differs from the headline year (UCOP doesn't always publish admit-GPA for every campus every year).

UC Outcomes Trend — 2018–2025

UC Admit Rate %
UC Reach Score (where available)
UC Admits (count, right axis)

Class size from CDE grade 12 enrollment. Campus-level data: applicant and admit totals count a student once at EACH campus. A senior admitted to UCLA and UC San Diego adds 2 to the admit total, so the total can exceed the senior class — that is the metric working as defined, not an error. The admit RATE is unaffected: both its numerator and denominator are campus-level.

Campus Breakdown — 2025

Campus Applicants Admits Enrollees Admit Rate UC Reach Score Yield Avg GPA (App) Avg GPA (Adm)
UC Berkeley → Elite 9 4.13
UCLA → Elite 10 4.17
UC San Diego → Selective 12 4.05
UC Santa Barbara → Selective 11 3 27.3% 3 4.06
UC Irvine → Selective 9 3.97
UC Davis → 9 6 66.7% 7 4.20 4.24
= UCOP-suppressed (count below 3 students, hidden for privacy — actual value is 0, 1, or 2, not necessarily zero). Campus-level totals may count one student admitted to multiple UC campuses more than once; Admit Volume metrics are not the same as UC Reach, which is measured against the whole senior class. See methodology →

What This Means

A large share of the senior class applies to UC, indicating strong college-going culture and UC pipeline development.
A large share of the class applies to UC, so the admit rate runs lower than the application volume alone might suggest — expected when many students apply broadly, including to reach campuses. UC Reach (which credits every admit relative to the class) is the truer read of how the class fares: a strong Reach alongside a moderate admit rate is healthy, not a contradiction.
Fewer than 15% of seniors are earning UC admission. This may reflect a high non-UC college-going rate, significant A-G completion gaps, or an early-stage UC pipeline. A deeper review of A-G readiness and counseling capacity is warranted.
Note: the UC Reach Score sums campus-level admits across the top-six UC campuses, so a student admitted to both UCLA and UCSD is counted at each. It reflects competitive admit volume relative to class size — admit-events, not distinct students — which is why a Score can exceed 100.
Compare with other schools → See Mono County rankings →

For School Admins

The full Reach Report for Mammoth High School

A board- and LCAP-ready intelligence brief: your enrollment retention and college outcomes, benchmarked against your closest competitors, with a 5-year forecast, concrete steps to act on, and the rigor + outcomes story you can share with your families. Built from primary public data — prepared for you, not auto-generated.

  • Your UC Reach Score (10) ranked head-to-head against your closest competitor schools
  • Your 5-year enrollment forecast (currently -1.6%/yr) with the revenue at stake
  • Student-retention benchmarking vs your county median — and the LCAP evidence to back your goals
See a sample report →

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All stories from the data →

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