Rio Mesa High School is a high school in Ventura County, California. Located northeast of Oxnard, the school is surrounded by strawberry fields and other crops growing on the Oxnard Plain. The school is part of the Oxnard Union High School District.
Serving 2,078 students in grades 9-12, Rio Mesa High School ranks in the bottom 50% of all schools in California for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 16% (which is lower than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 43% (which is lower than the California state average of 47%).
The student:teacher ratio of 24:1 is higher than the California state level of 21:1.
Minority enrollment is 95% of the student body (majority Hispanic), which is higher than the California state average of 80% (majority Hispanic).
Quick Stats (2025)
- Grades: 9-12
- Enrollment: 2,078 students
- Student:Teacher Ratio: 24:1
- Minority Enrollment: 95%
- Graduation Rate: 90% (Top 50% in CA)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 16% (Btm 50%)
- Reading Proficiency: 43% (Top 50%)
- Science Proficiency: 5% (Btm 50%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Overview
Rio Mesa High School's student population of 2,078 students has declined by 6% over five school years.
The teacher population of 87 teachers has declined by 10% over five school years.
Grades Offered
Grades 9-12
Total Students
2,078 students
Gender %
Total Classroom Teachers
87 teachers
Year Founded
1965
School Calendar
School Rankings
Rio Mesa High School ranks within the bottom 50% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Rio Mesa High School is 0.26, 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
#6117 out of 9523 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
16%
34%
Reading/Language Arts Test Scores (% Proficient)
43%
47%
Science Test Scores (% Proficient)
5%
29%
Student : Teacher Ratio
24:1
21:1
American Indian
n/a
1%
Asian
5%
12%
Hispanic
86%
56%
Black
2%
5%
White
5%
20%
Hawaiian
n/a
n/a
Two or more races
2%
6%
All Ethnic Groups
Graduation Rate
90%
87%
Eligible for Free Lunch
58%
54%
Eligible for Reduced Lunch
8%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
School Notes
- School Mascot: The Spartans
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Rio Mesa High School's ranking?
Rio Mesa High School is ranked #6117 out of 9,523 schools, which ranks it among the bottom 50% of public schools in California.
What schools are Rio Mesa High School often compared to?
Rio Mesa High Schoolis often viewed alongside schools like Pacifica High School, Oxnard High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
16% of students have achieved math proficiency (compared to the 34% CA state average), while 43% of students have achieved reading proficiency (compared to the 47% CA state average).
What is the graduation rate of Rio Mesa High School?
The graduation rate of Rio Mesa High School is 90%, which is higher than the California state average of 87%.
How many students attend Rio Mesa High School?
2,078 students attend Rio Mesa High School.
What is the racial composition of the student body?
86% of Rio Mesa High School students are Hispanic, 5% of students are Asian, 5% of students are White, 2% of students are Black, and 2% of students are Two or more races.
What is the student:teacher ratio of Rio Mesa High School?
Rio Mesa High School has a student ration of 24:1, which is higher than the California state average of 21:1.
What grades does Rio Mesa High School offer ?
Rio Mesa High School offers enrollment in grades 9-12
What school district is Rio Mesa High School part of?
Rio Mesa High School is part of Oxnard Union High School District.
In what neighborhood is Rio Mesa High School located?
Rio Mesa High School is located in the Strickland neighborhood of Oxnard, CA.
School Reviews
Review Rio Mesa 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
The 15 Biggest Failures of the American ºÚÁÏÍø¹ÙÍø Education System
The world is in a constant state of change and those who fail to adjust fall behind. Unfortunately, the American public education system has not kept up with the times and is currently facing a number of serious problems. Keep reading to learn about the biggest failures affecting the modern U.S. public education system as well as some of the trends that could spark change.
Florida Governor Calls for More Funding for State’s ºÚÁÏÍø¹ÙÍø School System
Florida Governor Rick Scott has introduced a state budget for next year that pumps one billion more dollars into the public school system. We’ll look at his reasons for the increase and the responses to the proposal.
Can Your Child’s School Meet the National Standards?
The article discusses the challenges public schools face in meeting national educational standards. It examines current performance trends, identifies key issues affecting student achievement, and explores potential solutions for improving academic outcomes across U.S. public schools.
