Petaluma High School is located one mile from historic downtown Petaluma in California. It is a comprehensive public high school with approximately 1,310 students in grades 9–12, serving the west side of Petaluma and many of the rural areas that surround the city in both Sonoma County and Marin County.
Serving 1,193 students in grades 9-12, Petaluma High School ranks in the top 50% of all schools in California for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 37% (which is higher than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 52% (which is higher than the California state average of 47%).
The student-teacher ratio of 21:1 is equal to the California state level of 21:1.
Minority enrollment is 40% of the student body (majority Hispanic), which is lower than the California state average of 80% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 1,193 students
- Student-Teacher Ratio: 21:1
- Minority Enrollment: 40%
- Graduation Rate: 94% (Top 30% in CA)
- Overall Testing Rank: Top 50%
- Math Proficiency: 37% (Top 50%)
- Reading Proficiency: 52% (Top 50%)
- Science Proficiency: 30-34% (Top 50%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Overview
Petaluma High School's student population of 1,193 students has declined by 12% over five school years.
The teacher population of 57 teachers has declined by 6% over five school years.
Grades Offered
Grades 9-12
Total Students
1,193 students
Total Classroom Teachers
57 teachers
Year Founded
1873
Colors
White, Purple
School Calendar
School Rankings
Petaluma High School ranks within the top 50% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Petaluma High School is 0.55, 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
#3143 out of 9523 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
37%
34%
Reading/Language Arts Test Scores (% Proficient)
52%
47%
Science Test Scores (% Proficient)
30-34%
29%
Student-Teacher Ratio
21:1
21:1
American Indian
n/a
1%
Asian
2%
12%
Hispanic
31%
56%
Black
1%
5%
White
60%
20%
Hawaiian
1%
n/a
Two or more races
5%
6%
All Ethnic Groups
Graduation Rate
94%
87%
Eligible for Free Lunch
28%
54%
Eligible for Reduced Lunch
13%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Notes
- School Mascot: Trojans
Frequently Asked Questions
What is Petaluma High School's ranking?
Petaluma High School is ranked #3143 out of 9,523 schools, which ranks it among the top 50% of public schools in California.
What schools are Petaluma High School often compared to?
Petaluma High Schoolis often viewed alongside schools like Casa Grande High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
37% of students have achieved math proficiency (compared to the 34% CA state average), while 52% of students have achieved reading proficiency (compared to the 47% CA state average).
What is the graduation rate of Petaluma High School?
The graduation rate of Petaluma High School is 94%, which is higher than the California state average of 87%.
How many students attend Petaluma High School?
1,193 students attend Petaluma High School.
What is the racial composition of the student body?
60% of Petaluma High School students are White, 31% of students are Hispanic, 5% of students are Two or more races, 2% of students are Asian, 1% of students are Black, and 1% of students are Hawaiian.
What is the student-teacher ratio of Petaluma High School?
Petaluma High School has a student ration of 21:1, which is equal to the California state average of 21:1.
What grades does Petaluma High School offer ?
Petaluma High School offers enrollment in grades 9-12
What school district is Petaluma High School part of?
Petaluma High School is part of Petaluma Joint Union High School District.
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