C
Below Average
58/100

Diamond Bar High

📚 09 – 12 🏫 High School
📍 21400 Pathfinder Rd., Diamond Bar, CA 91765
58
Repit Score
out of 100
2,532
Students
enrolled
25.4:1
Student:Teacher
ratio
$16K
Per Student
spending

What We Evaluated

👨‍🏫 Class Size 25.4:1 student-teacher ratio
💰 Funding $16,313 per student
🏫 School Type Regular

School Information

Address 21400 Pathfinder Rd.
City Diamond Bar
ZIP Code 91765
District 0641280
NCES School ID 064128007894
Data Year 2024-25

Community Context for 91765

Understanding the community around Diamond Bar High helps evaluate the school environment and neighborhood.

💰 Income & Economy

Median Household Income $105,712
Per Capita Income $46,501
Poverty Rate 7.3%
Households Earning $100K+ 51.8%

🎓 Education Level

Bachelor's Degree or Higher 52.5%
High School or Higher 92.7%

🏠 Housing

Median Home Value $839,700
Median Rent $2,310
Owner-Occupied 77.1%
Renter-Occupied 22.9%
View full data for ZIP 91765 →

Thinking about moving into this school’s area? See what homes and rents actually cost in ZIP 91765 — values, rent, and how it compares to nearby ZIPs. Free, no signup. See 91765 housing costs →

Student Demographics

Enrollment and demographic breakdown for Diamond Bar High.

👫 Gender Distribution

Male 51.5%
Female 48.5%

🌎 Race & Ethnicity

Asian 69.9%
Hispanic/Latino 17.7%
White 5.9%
Two or More Races 4.3%
Black 1.7%
Pacific Islander 0.5%

📋 Enrollment Summary

Total Enrollment 2,532
Teachers (FTE) 99.5
Student:Teacher Ratio 25.4:1

Frequently Asked Questions

What is the Repit School Score for Diamond Bar High?
Diamond Bar High has a Repit School Score of 58 out of 100, earning a grade of C. This score evaluates class size (student-teacher ratio), funding levels, and resources rather than just test scores.
How many students attend Diamond Bar High?
Diamond Bar High has 2,532 students enrolled for the 2024-25 school year. The student-to-teacher ratio is 25.4:1.
What grades does Diamond Bar High serve?
Diamond Bar High serves grades 09 – 12 and is classified as a High School. This is a public school.
How much funding does Diamond Bar High receive per student?
Diamond Bar High receives $16,313 in per-pupil spending from its district. This is above the national average.
🏠 Rental Market Around Diamond Bar High in 91765 ▼
Avg Home Value
$1,035,153
Avg Monthly Rent
$3,236
1-Year Change
+3.8%
% Renters
22.9%

Other Schools in 91765

B+

Armstrong Elementary

K – 06 • School
Repit Score 82/100
B+

Golden Springs Elementary

K – 06 • School
Repit Score 79/100
B+

Lorbeer Middle

07 – 08 • Middle
Repit Score 79/100
B+

Pantera Elementary

K – 06 • School
Repit Score 79/100
B

Evergreen Elementary

K – 05 • Elementary
Repit Score 70/100
View all schools and real estate data for 91765 →

About Repit School Scores

Traditional school ratings rely heavily on standardized test scores, which often reflect family income more than actual school quality. Repit takes a different approach.

We evaluate schools based on factors that research shows actually impact educational outcomes:

  • Class Size — Smaller classes mean more individual attention and better student outcomes.
  • School Funding — Resources available for programs, teachers, and facilities directly affect education quality.
  • School Environment — School size and structure affect available programs and student experience.

Data source: NCES CCD 2024-25 | Last updated: September 2026