High school (grades 9-12) · Petrolia, CA

Mattole Triple Junction High

Federal NCES profile for Mattole Triple Junction High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 74/100.

2024-25 NCES dataHigh school (grades 9-12)NCES 060003801994
0/100100/10074/100
👥 S:T ratio
92
🌟 Gifted program
30
🎓 Counselors
100
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →

The verdict

Mattole Triple Junction High earns 74/100 on the Resource Investment Index, with class sizes smaller than 99% of California schools. It is also one of the smallest schools in California.

74
Resource Index · Higher
2:1
small classes for California
2
students enrolled

Mattole Triple Junction High has class sizes smaller than 99% of California schools. Computed live against every California school reporting to NCES.

School address

CCD year-over-year · 2022-23 → 2023-24

-5 students YoY

Mattole Triple Junction High shrank from 8 students in 2022-23 to 3 in 2023-24 (-62.5%).

Teacher FTE added 1.6 → 2.3 across the same CCD years.

Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).

Shrinking CCD campus

-5 students YoY 060003801994 · Petrolia, CA High · SMALL · TRAD

2 enr · 2:1 · RII 74

Nearest enrollment peer: Mattole Elementary (27 students)

Mattole Triple Junction High shrank from 8 students in 2022-23 to 3 in 2023-24 (-62.5%). Teacher FTE added 1.6 → 2.3 across the same CCD years. Read with this school → · District book → · California schools → · Find another →

Mattole Triple Junction High in the enrollment neighbourhood

Fall enrollment among this campus and nearest district peers

students

What this shows Mattole Triple Junction High reports 2 students on the CCD universe file.

Source U.S. Department of Education, NCES Common Core of Data (Public School Universe) As of 2024-25

How Mattole Triple Junction High compares

Mattole Triple Junction High is a shrinking campus on CCD: ratios and free-lunch share vs California and U.S. means.

Metric This school vs California California avg U.S. avg
Students per teacher 2:1 ▼ 91% 21.5:1 15.7:1
Enrollment 2 top 100% - -

Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25

2:1
Leaner classes than 100% of US schools, among the more generously staffed nationally.
2
Bigger than 0% of US schools by enrollment, a small campus.

Equity indicators methodology

Staffing depth
2:1
students per teacher - 91% below state mean
Top 1% in California - lower ratio than 100% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Funding equity
$37,765
per pupil, district-wide - above California avg of $18,665
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors1.0 FTE
Per 2 students, the combined health-and-guidance staffing load for this school.
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.

Student demographics

White 50.0%
Hispanic or Latino 50.0%

Largest group: Hispanic or Latino at 50.0% of enrollment.

Student-body diversity index 50.0/100

Simpson diversity index - at 50.0, Mattole Triple Junction High is more mixed than the California school average of 46.0.

Programs

AP courses offered 1

District finance for Mattole Unified reports $37,765 per pupil (NCES F-33) - open the district page for the full revenue mix.

How Mattole Triple Junction High Compares to District-Mates

School Enrollment Economic Profile Student-Teacher Ratio
Mattole Elementary Larger No free-lunch data Higher S:T ratio
Honeydew Elementary Larger No free-lunch data No ratio data

Comparisons are relative to Mattole Triple Junction High's own figures; each column derives from NCES Common Core of Data.

Other Schools in This District

Mattole Unified · 2 sibling schools

View district profile

Nationwide high schools with similar size or staffing

Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.

Frequently asked questions about Mattole Triple Junction High

How many students attend Mattole Triple Junction High?

Mattole Triple Junction High has 2 students enrolled. It is a high school in Petrolia, CA. CCD year-over-year: 8 (2022-23) → 3 (2023-24), down 5.

What is the student-teacher ratio at Mattole Triple Junction High?

The student-teacher ratio at Mattole Triple Junction High is 2:1, which is 91% lower than the California average of 21.5:1 and 87% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.

What is the racial and ethnic makeup of Mattole Triple Junction High?

The largest demographic group at Mattole Triple Junction High is Hispanic or Latino at 50.0% of enrollment, in Petrolia, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 50.0/100.

What is the Resource Investment Index for Mattole Triple Junction High?

Mattole Triple Junction High has a Resource Investment Index of 74/100 (higher reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).

What other schools are in Mattole Unified?

Besides Mattole Triple Junction High, Mattole Unified also operates Mattole Elementary (27 students) and Honeydew Elementary (13 students). See the Mattole Unified district page for the complete list.

Source: National Center for Education Statistics (NCES) CCD + Public School Universe (2024-25), CRDC (2021-22), F-33 District Finance Survey (FY 2022-23) · 2024-25 Data as of the 2024-25 school year. Coverage from U.S. Department of Education NCES Common Core of Data. Varies by entity type; administrative districts and certain charter networks may report only a subset of fields.

All federal data sources used on this page

Full source list and how we compute each figure: methodology page.