Mt. Diablo High School
Mt. Diablo High School serves 1,567 students in grades 9-12.
Mt. Diablo High School placed in the bottom 50% of all schools in California for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%) for the 2018-19 school year.
The percentage of students achieving proficiency in math is 15% (which is lower than the California state average of 40%) for the 2018-19 school year. The percentage of students achieving proficiency in reading/language arts is 36% (which is lower than the California state average of 51%) for the 2018-19 school year.
The student:teacher ratio of 20:1 is lower than the California state level of 22:1.
Minority enrollment is 96% of the student body (majority Hispanic), which is higher than the California state average of 78% (majority Hispanic).
Quick Stats (2023)
- Grades: 9-12
- Enrollment: 1,567 students
- Student:Teacher Ratio: 20:1
- Minority Enrollment: 96%
- Graduation Rate: 81% (Btm 50% in CA)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 15% (Btm 50%)
- Reading Proficiency: 36% (Btm 50%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Overview
Mt. Diablo High School's student population of 1,567 students has grown by 16% over five school years.
The teacher population of 78 teachers has grown by 8% over five school years.
Grades Offered
Grades 9-12
Total Students
1,567 students
Gender %
Total Classroom Teachers
78 teachers
Students by Grade
School Calendar
School Rankings
Mt. Diablo High School is ranked within the bottom 50% of all 9,659 schools in California (based off of combined math and reading proficiency testing data) for the 2018-19 school year.
The diversity score of Mt. Diablo High School is 0.46, which is less than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#7883 out of 9659 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
15%
40%
Reading/Language Arts Test Scores (% Proficient)
36%
51%
Student : Teacher Ratio
20:1
22:1
American Indian
n/a
n/a
Asian
12%
12%
Hispanic
72%
56%
Black
7%
5%
White
4%
22%
Hawaiian
1%
n/a
Two or more races
4%
5%
All Ethnic Groups
Graduation Rate
(19-20)81%
85%
Eligible for Free Lunch
60%
53%
Eligible for Reduced Lunch
5%
6%
School Statewide Testing
School District Name
Source: 2020-2021 (latest school year available) National Center for Education Statistics (NCES), CA Dept. of Education
Frequently Asked Questions
What percent of students have achieved state testing proficiency in math and reading?
15% of students have achieved math proficiency (compared to the 40% CA state average), while 36% of students have achieved reading proficiency (compared to the 51% CA state average).
What is the graduation rate of Mt. Diablo High School?
The graduation rate of Mt. Diablo High School is 81%, which is lower than the California state average of 85%.
How many students attend Mt. Diablo High School?
1,567 students attend Mt. Diablo High School.
What is the racial composition of the student body?
72% of Mt. Diablo High School students are Hispanic, 12% of students are Asian, 7% of students are Black, 4% of students are White, 4% of students are Two or more races, and 1% of students are Hawaiian.
What is the student:teacher ratio of Mt. Diablo High School?
Mt. Diablo High School has a student ration of 20:1, which is lower than the California state average of 22:1.
What grades does Mt. Diablo High School offer ?
Mt. Diablo High School offers enrollment in grades 9-12
What school district is Mt. Diablo High School part of?
Mt. Diablo High School is part of MT. Diablo Unified School District.
School Reviews
Review Mt. Diablo High School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
Recent Articles
Junior Reserve Officers Training Corps or JROTC
JROTC offers valuable lessons in leadership, character-building and citizenship. Here's a look at the various JROTC programs out there together with a look at the pros and cons of the program.
Choosing Between the SAT and ACT and How to Prepare
Taking the SAT or ACT is a major source of stress for high school students. Keep reading to learn how to choose the right test and how to prepare for it.
Prevent Brain Drain: Keep Your Kids’ Minds Sharp During Vacation
Long periods of time off from school can lead your child to lose valuable knowledge and skills. Learn more about brain drain and 4 ways to keep your child's mind revving, even during vacation. incorporating quality learning exercises into their spring, summer, and winter vacations.
