C+
Average
66/100

Mattole Triple Junction High

📚 09 – 12 🏫 High School
Not rated on results. This school did not report state test or graduation results, so this is a small rating based only on class size, funding and school type. It is not a good comparison with schools rated on student results.
📍 29289 Chambers Rd., Petrolia, CA 95558
Mattole Triple Junction High, Petrolia, CA — Repit school rating C+ (66/100)
Mattole Triple Junction High, Petrolia, CA — Repit school rating C+ (66/100)
66
Repit Score
out of 100
3
Students
enrolled
1.3:1
Student:Teacher
ratio
$28K
Per Student
spending

What Goes Into This Rating

FactorWeightScoreBasis
🏫 Resources only—88/100No test or graduation results were reported. The rating is limited and capped, and is not a fair comparison with schools rated on results.

The overall Repit Score ranks this blend against every rated school in California. Schools are compared within their state because each state sets its own tests and proficiency bar. How we rate schools

School Information

Address 29289 Chambers Rd.
City Petrolia
ZIP Code 95558
District 0600038
NCES School ID 060003801994
Data Year 2024-25

Community Context for 95558

Understanding the community around Mattole Triple Junction High helps evaluate the school environment and neighborhood.

💰 Income & Economy

Median Household Income $42,917
Per Capita Income $40,704
Poverty Rate 14.0%
Households Earning $100K+ 14.3%

🎓 Education Level

Bachelor's Degree or Higher 25.3%
High School or Higher 96.2%

🏠 Housing

Median Home Value $1,041,700
Median Rent N/A
Owner-Occupied 69.2%
Renter-Occupied 30.8%
View full data for ZIP 95558 →

Thinking about moving into this school’s area? See what homes and rents actually cost in ZIP 95558 — values, rent, and how it compares to nearby ZIPs. Free, no signup. See 95558 housing costs →

Student Demographics

Enrollment and demographic breakdown for Mattole Triple Junction High.

👫 Gender Distribution

Male 33.3%
Female 66.7%

🌎 Race & Ethnicity

White 66.7%
American Indian 33.3%

📋 Enrollment Summary

Total Enrollment 3
Teachers (FTE) 2.3
Student:Teacher Ratio 1.3:1

Frequently Asked Questions

What is the Repit School Score for Mattole Triple Junction High?
Mattole Triple Junction High has a Repit School Score of 66 out of 100, earning a grade of C+. No test results were reported for this school, so the score reflects class size, funding and resources only.
How many students attend Mattole Triple Junction High?
Mattole Triple Junction High has 3 students enrolled for the 2024-25 school year. The student-to-teacher ratio is 1.3:1.
What grades does Mattole Triple Junction High serve?
Mattole Triple Junction High serves grades 09 – 12 and is classified as a High School. This is a public school.
How much funding does Mattole Triple Junction High receive per student?
Mattole Triple Junction High receives $28,463 in per-pupil spending from its district. This is above the national average.

Other Schools in 95558

B

Mattole Elementary

K – 08 • School
Repit Score 73/100
View all schools and real estate data for 95558 →

About Repit School Scores

Parents choosing a school deserve to see what it actually delivers. Since October 2026 the Repit School Score is built mainly on results:

  • Academics (largest share) — the share of students scoring proficient in reading and math on the state test, ranked against schools of the same level in the same state.
  • Graduation (high schools) — the four-year adjusted cohort graduation rate. Only regular diplomas count; GEDs and certificates of attendance do not.
  • Resources (smaller share) — class size, per-pupil funding, school size and type.

Scores compare schools within their own state, because every state writes its own tests and sets its own proficiency bar. Full methodology

Data sources: NCES CCD 2024-25, U.S. Dept. of Education EDFacts (test results & graduation) | Last updated: October 2026