C+
Average
64/100

Roy A. Johnson 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.
📍 18400 Clifton Way, Castro Valley, CA 94546
64
Repit Score
out of 100
20
Students
enrolled
11.1:1
Student:Teacher
ratio
$21K
Per Student
spending

What Goes Into This Rating

FactorWeightScoreBasis
🏫 Resources only—83/100No 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 18400 Clifton Way
City Castro Valley
ZIP Code 94546
District 0607800
NCES School ID 060780000750
Data Year 2024-25

Community Context for 94546

Understanding the community around Roy A. Johnson High helps evaluate the school environment and neighborhood.

💰 Income & Economy

Median Household Income $117,808
Per Capita Income $51,886
Poverty Rate 4.4%
Households Earning $100K+ 57.5%

🎓 Education Level

Bachelor's Degree or Higher 40.4%
High School or Higher 91.1%

🏠 Housing

Median Home Value $935,700
Median Rent $2,371
Owner-Occupied 65.7%
Renter-Occupied 34.3%
View full data for ZIP 94546 →

Thinking about moving into this school’s area? See what homes and rents actually cost in ZIP 94546 — values, rent, and how it compares to nearby ZIPs. Free, no signup. See 94546 housing costs →

Student Demographics

Enrollment and demographic breakdown for Roy A. Johnson High.

👫 Gender Distribution

Male 60.0%
Female 40.0%

🌎 Race & Ethnicity

Two or More Races 30.0%
White 25.0%
Hispanic/Latino 20.0%
Asian 20.0%
Black 5.0%

📋 Enrollment Summary

Total Enrollment 20
Teachers (FTE) 1.8
Student:Teacher Ratio 11.1:1

Frequently Asked Questions

What is the Repit School Score for Roy A. Johnson High?
Roy A. Johnson High has a Repit School Score of 64 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 Roy A. Johnson High?
Roy A. Johnson High has 20 students enrolled for the 2024-25 school year. The student-to-teacher ratio is 11.1:1.
What grades does Roy A. Johnson High serve?
Roy A. Johnson High serves grades 09 – 12 and is classified as a High School. This is a public school.
How much funding does Roy A. Johnson High receive per student?
Roy A. Johnson High receives $21,375 in per-pupil spending from its district. This is above the national average.
🏠 Rental Market Around Roy A. Johnson High in 94546 ▼
Avg Home Value
$1,018,766
Avg Monthly Rent
$2,712
1-Year Change
+0.9%
% Renters
34.3%

Other Schools in 94546

View all schools and real estate data for 94546 →

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