Average
#5699 of 9,539 schools in CA
Rio Mesa High
High School · Oxnard Union High
545 Central Ave., Oxnard, CA 93030
Enrollment
2,078
Student-Teacher
23.9:1
Score
5.9
Grades
9th – 12th
Enrollment
2,078
Student-Teacher
23.9:1
Score
5.9
Grades
9th – 12th
Data vintage
2022-23
Data vintage2022-23
How this school compares
California schools
#5,699 of 9,539
In Oxnard
#21 of 48
public schools
In district
#5 of 10
Oxnard Union High
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Rio Mesa High
High School in Oxnard · grades 9th – 12th. Start here, then compare fit against nearby and district options.
Linda Vista Adventist Elementary School
0.4 mi away. Use as a geographic alternative in the same move search.
Linda Vista Adventist School
0.5 mi away. Use as a geographic alternative in the same move search.
About Rio Mesa High
Rio Mesa High is a public high school in Oxnard, CA, part of Oxnard Union High. Rio Mesa High serves approximately 2,078 students, and covers grades 9th-12th, and has a 23.9:1 student-teacher ratio. Rio Mesa High has a current MySchoolScout rating of 5.9 out of 10 and ranks #5,699 of 9,539 schools in CA.
Structured state assessment records for Rio Mesa High show 33% math proficiency (multi-year average, 2009-2024) and 48% reading/ELA proficiency (multi-year average, 2009-2024).
- This school 5.9 · Average
- District avg 6.0
- CA avg 6.5
What Parents Should Know
Rio Mesa High is a large school: 2,078 students. Size usually brings more course choices and activities than a smaller school can staff, but kids can also blend into the crowd. Ask how the school keeps students known and supported.
Rio Mesa High runs 23.9:1 students to teachers, above the national average. That often means bigger classes. Ask how the school supports kids who need extra help, and whether there are teaching assistants or small-group time.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
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Rio Mesa High — Students at Rio Mesa High score 31% proficient, which is below what's typical for similar communities (expected: 38%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
65.3%
Students qualifying for federal meal assistance
Test Scores CA CAASPP (2023-24)
Based on 30 test records from CA state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 5.4/10.
How Rio Mesa High Compares
See how Rio Mesa High performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
Location
545 Central Ave., Oxnard, CA 93030
Nearby Alternatives
Families considering Rio Mesa High may also want to explore other high schools in the area. Condor High (rated 7.4/10, 2.5 miles away), which scores notably higher. Additionally, Pacifica High (rated 4.5/10, 2.9 miles away), a more accessible option. For more schools in Oxnard, see our Oxnard schools guide .
Nearby Schools
20 within 2.9 mi| School | Distance | Rating |
|---|---|---|
| LINDA VISTA ADVENTIST ELEMENTARY SCHOOL Oxnard | 0.4 mi | 6.0 |
| Linda Vista Adventist School Oxnard | 0.5 mi | — |
| Providence Oxnard | 0.8 mi | 5.0 |
| Rio Plaza Elementary Oxnard | 1.2 mi | 4.8 |
| Rio del Valle Middle Oxnard | 1.5 mi | 6.8 |
| Rio Del Mar Oxnard | 1.4 mi | 6.6 |
| Rio Vista Middle Oxnard | 1.6 mi | 5.7 |
| Rio Real Elementary Oxnard | 1.9 mi | 7.2 |
| Junipero Serra Elementary Ventura | 1.9 mi | 4.6 |
| Academy of Technology & Leadership at Saticoy Ventura | 2.3 mi | 7.0 |
| Rio del Sol Oxnard | 2.1 mi | 5.4 |
| PEPPERMINT JUNCTION Oxnard | 2.5 mi | 4.5 |
| Peppermint Junction Oxnard | 2.5 mi | — |
| SACRED HEART ELEMENTARY SCHOOL Ventura | 2.4 mi | 6.0 |
| Condor High Oxnard | 2.5 mi | 7.4 |
| Citrus Glen Elementary Ventura | 2.3 mi | 3.5 |
| Rio Lindo Elementary Oxnard | 2.4 mi | 4.9 |
| Norman R. Brekke Elementary Oxnard | 2.9 mi | 7.5 |
| Rio Rosales Oxnard | 3.0 mi | 5.3 |
| Pacifica High Oxnard | 2.9 mi | 4.5 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 93030 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$90,067
Median Home Value
$639,800
Median Rent
$1,853/mo
Population
58,573
College Educated
18.6%
Homeownership
45.5%
Avg Commute
24.6 min
Poverty Rate
11.9%
Median Age
34.2
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Arvin High Arvin, CA | 5.9 |
| Calabasas High Calabasas, CA | 5.9 |
| Central East High Fresno, CA | 5.9 |
| Deer Valley High Antioch, CA | 5.9 |
| East Union High Manteca, CA | 5.9 |
| Florin High Sacramento, CA | 5.9 |
Frequently Asked Questions
Common questions about Rio Mesa High
What grades does Rio Mesa High serve?
Rio Mesa High serves students in grades 9th through 12th.
How many students attend Rio Mesa High?
Rio Mesa High has an enrollment of approximately 2,078 students.
What is the student-teacher ratio at Rio Mesa High?
The student-teacher ratio at Rio Mesa High is 23.9:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Rio Mesa High rank in CA?
Rio Mesa High ranks #5,699 of 9,539 schools in CA.
What is Rio Mesa High's MySchoolScout rating?
Rio Mesa High has a current MySchoolScout rating of 5.9 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Rio Mesa High?
Based on loaded state assessment records, Rio Mesa High has 33% math proficiency (multi-year average, 2009-2024) and 48% reading/ELA proficiency (multi-year average, 2009-2024).
Is Rio Mesa High a charter school?
No, Rio Mesa High is not a charter school. It is a traditional public school operated by the local school district.
Is Rio Mesa High a Title I school?
No, Rio Mesa High is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Rio Mesa High?
65.3% of students at Rio Mesa High qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Explore More Schools
Neighborhood Context
Powered by 
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 2,078
- Student-Teacher Ratio
- 23.9:1
- Teachers (FTE)
- 87
- Free/Reduced Lunch
- 65.3%
- Type
- regular
- Setting
- Large Suburb
- County
- Ventura County
- Chronic Absenteeism (SY 2022-23)
- 27.1%
- Phone
- (805) 278-5500
- 4-Year Graduation
- 85.0%
Resources & Links
District
Oxnard Union High- District Enrollment
- 16,501
- Schools in District
- 12
- Per-Pupil Spending
- $17,707
- District Rank
- #5 of 10
Other Schools in This District
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