Rio Mesa High
🇺🇸 Official data · 2025Oxnard, California 93030 · Oxnard Union High
#966 of 1,343 high schools in California
#14266 of 16,910 nationally
About Rio Mesa High
Rio Mesa High is a public high located in Oxnard, in the Oxnard Union High school district of California, United States. It caters for Grades 9–12. In 2025 it enrolled 1,951 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 25.6 out of 100, placing it in the lower 50% of high schools in United States and 966th of 1,343 ranked high schools in California. Its strongest component is reading proficiency (36th percentile), and its weakest is students per teacher (8th percentile).
Other published figures: enrollment 1,951.
There are 49 schools in Oxnard; Rio Mesa High ranks 8th of 47 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)24%
- Reading proficiency (30%)46%
- Community advantage (fewer free/reduced-price lunch) (25%)72.6%
- Students per teacher (15%)23.2
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Rio Mesa High by the official sources.
- Enrollment
- 1,951
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 72.6%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 23.2
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 46%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 24%
- Share of tested students proficient or above (all students, all grades).
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Schools near Rio Mesa High
Closest schools by straight-line distance, with their Success Index (US).
Rio Plaza Elementary
Oxnard · Public elementary · Grades K–5
455 students · 2.0 km away
Rio Del Mar
Oxnard · Public elementary · Grades K–5
499 students · 2.3 km away
Rio del Valle Middle
Oxnard · Public middle · Grades 6–8
569 students · 2.5 km away
Rio Vista Middle
Oxnard · Public middle · Grades 6–8
637 students · 2.6 km away
Rio Real Elementary
Oxnard · Public elementary · Grades K–8
794 students · 3.1 km away
Junipero Serra Elementary
Ventura · Public elementary · Grades K–5
418 students · 3.1 km away
Rio del Sol
Oxnard · Public elementary · Grades K–8
839 students · 3.3 km away
Citrus Glen Elementary
Ventura · Public elementary · Grades K–5
491 students · 3.7 km away
Academy of Technology & Leadership at Saticoy
Ventura · Public elementary · Grades K–8
461 students · 3.8 km away
Rio Lindo Elementary
Oxnard · Public elementary · Grades K–5
405 students · 3.9 km away
Similar schools
Public high schools in California with a comparable Enrollment.
Wilmer Amina Carter High
Rialto · Public high · Grades 9–12
1,951 students
Fontana A. B. Miller High
Fontana · Public high · Grades 9–12
1,950 students
Lodi High
Lodi · Public high · Grades 9–12
1,952 students
Canyon High
Canyon Country · Public high · Grades 9–12
1,952 students
Rancho Buena Vista High
Vista · Public high · Grades 9–12
1,949 students
College Park High
Pleasant Hill · Public high · Grades 9–12
1,948 students
Frequently asked questions
Is Rio Mesa High a good school?
Rio Mesa High has a Success Index (US) of 25.6 out of 100 (Lower 50% of high schools in United States) and ranks #966 of 1,343 in California. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Rio Mesa High rank in California?
Rio Mesa High ranks #966 of 1,343 high schools in California and #14266 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Rio Mesa High?
Rio Mesa High had 1,951 students in 2025.
Is Rio Mesa High a elementary school or a high school?
Rio Mesa High is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Rio Mesa High?
There are 10 schools within 15 km of Rio Mesa High; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.