NCES CCD 2024-25 5 schools CA

Best-Resourced Schools in Mammoth Lakes, CA

Compiled from official source data by PlainSchools. · Updated August 2026

5 public K-12 schools in Mammoth Lakes from NCES Common Core of Data: enrollment, grade span, demographics, and Civil Rights Data Collection statistics for every active campus.

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Schools

1,098

Students

37.6/100

Avg Resource Index

15.7:1

Avg Student-Teacher Ratio

National city placement

One campus shapes the city average

According to NCES CCD 2024-25, Mammoth Lakes has more public-school enrollment than 3% of the 4,487 US cities in this directory. Mammoth Elementary enrolls 46.0% of Mammoth Lakes's public-school students. That is enough concentration for one institution to pull the citywide enrollment, staffing, and Resource Index averages toward its own profile. The smaller campuses below should therefore be compared directly rather than inferred from the headline mean; their grade configurations and program footprints can be materially different even inside the same district.

Secondary campuses occupy an unusually large share

2 of the 5 listed Mammoth Lakes schools are classified as high schools, a substantial share of the local portfolio. Advanced-course access, counseling, and graduation-stage staffing therefore have more weight in the city Resource Index average than they do in an elementary-heavy system.

A small portfolio contains radically different campus scales

Mammoth Lakes lists only 5 schools, yet reported enrollment runs from 9 to 505 students, a 56-fold range. In a portfolio this compact, the smallest record may be a specialized or nonstandard setting rather than a miniature version of the largest campus. That distinction affects how ratios and program fields should be read. Compare similarly configured grade levels first; combining the extremes into one city average conceals more than it explains.

City enrollment: Top 97%
School count: Top 99%
Resource Index average: 35th percentile
Teacher staffing: 46th percentile

Mammoth Elementary accounts for 46.0% of all Mammoth Lakes public-school enrollment

That is an overwhelming concentration, leaving the rest of Mammoth Lakes a distant remainder — means Mammoth Lakes-wide averages can mask substantial variation outside the largest entity. Grade level: Elementary. The share measures enrollment concentration only; it does not establish how districts allocate programs, capital, or staff. Enrollment-weighted aggregates give this entity more weight than any smaller peer, while an unweighted entity average treats every record equally.

Source: NCES Common Core of Data Accessed 2026-08-11

Mammoth Lakes school enrollment varies 56× across entities

Mammoth Lakes 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 heterogeneity inside a single city, with small specialty programs listed alongside large comprehensive campuses. Per-school staffing and program breadth can differ sharply at opposite ends of that enrollment range, so the city average should not be treated as a typical campus.

Source: NCES Common Core of Data Accessed 2026-08-11

Mammoth Lakes student-teacher ratio is 15.7:1 — near the typical range (US average ~15.7) — citywide staffing is neither unusually lean nor unusually crowded by this measure

student-teacher ratio is the simplest comparative metric but it does not capture the full picture: the ratio counts FTE classroom teachers against total enrollment, push-in specialists, English-language aides, special-education co-teachers, and counselors are not included in most reporting Variation between sub-units within Mammoth Lakes is typically wider than the Mammoth Lakes-aggregate figure suggests.

Source: NCES Common Core of Data, Public School Universe Accessed 2026-08-11

#	School	Score	Enrollment	Level	District
1.	Sierra High (Continuation)	64	9	high	Mammoth Unified
2.	Jan Work Community	43	11	Combined	Mono County Office of Education
3.	Mammoth High	35	330	high	Mammoth Unified
4.	Mammoth Middle	31	243	middle	Mammoth Unified
5.	Mammoth Elementary	15	505	elementary	Mammoth Unified

Most racially and ethnically mixed schools in Mammoth Lakes

Ranked by the Simpson student-body diversity index (0-100) from NCES race and ethnicity data, where higher means a more evenly mixed student body. It measures mix, not quality.

What do families ask about schools in Mammoth Lakes?

Which Mammoth Lakes school has the highest Resource Investment Index? ▼

Sierra High (Continuation) has the highest Resource Investment Index among the Mammoth Lakes schools in this federal-data comparison at 64/100. The index summarizes reported staffing, counseling, gifted-program, and attendance inputs; it is not an academic rating.

How many schools are in Mammoth Lakes, CA? ▼

Mammoth Lakes has 5 public schools with a total enrollment of 1,098 students. Average student-teacher ratio: 15.7:1.

Other Cities in California

Side-by-side: Compare any two schools or districts in California →

Data from NCES Common Core of Data (CCD) 2024-25 and Civil Rights Data Collection (CRDC) 2021-22. The Resource Investment Index uses reported student-teacher ratio, counselor access, gifted programs, and attendance; it is not an academic rating. Cities must include at least five schools to be listed. This public-data comparison is for informational purposes: verify current enrollment, attendance boundaries, and programs with the school district before acting. See the guide to understanding NCES data.