Average
#4006 of 9,533 schools in CA
Top 42% in state
Rio Mesa High
High School · Oxnard Union High
545 Central Ave., Oxnard, CA 93030
Enrollment
2,078
Student-Teacher
23.9:1
Score
6.7
Grades
9th – 12th
Enrollment
2,078
Student-Teacher
23.9:1
Score
6.7
Grades
9th – 12th
Updated
2022-23
Updated 2022-23
How this school compares
In Oxnard
#29 of 48
public schools
California high schools
#781 of 1,892
In district
#6 of 10
Oxnard Union High
About Rio Mesa High
Rio Mesa High serves 2,078 students in grades 9-12 in Oxnard, California, operating as a large comprehensive public high school in Ventura County's suburban landscape. With 87 full-time equivalent teachers, the school maintains a student-teacher ratio of 23.9:1, typical for a school of this size. Academically, Rio Mesa High has room for growth, with 46% of students demonstrating proficiency in English Language Arts while 15% achieve proficiency in mathematics.
The school ranks in the 32nd percentile among California high schools, reflecting opportunities to enhance student achievement across core subject areas. These results suggest the school is focusing on developing stronger academic foundations for its diverse student body. The school draws from a community where the median household income reaches $88,508, with median home values at $604,600.
The surrounding ZIP code area has a population of 58,511 residents, with 17% holding bachelor's degrees or higher and an 11.1% poverty rate, indicating a mixed socioeconomic environment. Located on Central Avenue, Rio Mesa High sits in Oxnard's large suburban setting, serving families throughout this established Ventura County community where students can access the educational opportunities of a sizable high school while remaining connected to their local neighborhood roots.
What Parents Should Know
Rio Mesa High is a large school with 2,078 students enrolled. Larger schools typically offer a wider range of academic programs, electives, and extracurricular activities. Parents may want to ask about how the school maintains a sense of community and ensures students don't get lost in the crowd.
The student-teacher ratio at Rio Mesa High is 23.9:1, which is higher than the national average. This may mean larger class sizes, so parents should ask about classroom support, teaching assistants, and how the school differentiates instruction for students who need extra help.
Score 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 8 test records from CA state assessments. About our data
Proficiency Trend
→ StableAverage 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: 6.2/10.
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 2020-21 · Source: CRDC via Urban Institute · Learn more
Performance Trends
Math proficiency has declined from 24% (2019) to 14.89% (2024). Reading/ELA proficiency has remained stable from 46% (2019) to 46.41% (2024).
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 7.0/10, 2.5 miles away), with a very similar rating. Additionally, Pacifica High (rated 4.3/10, 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 | 5.7 |
| Rio Plaza Elementary Oxnard | 1.2 mi | 5.1 |
| Rio del Valle Middle Oxnard | 1.5 mi | 6.8 |
| Rio Del Mar Oxnard | 1.4 mi | 5.3 |
| Rio Vista Middle Oxnard | 1.6 mi | 5.5 |
| Rio Real Elementary Oxnard | 1.9 mi | 6.9 |
| Junipero Serra Elementary Ventura | 1.9 mi | 3.4 |
| Academy of Technology & Leadership at Saticoy Ventura | 2.3 mi | 7.0 |
| Rio del Sol Oxnard | 2.1 mi | 5.2 |
| 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 | 7.0 |
| Citrus Glen Elementary Ventura | 2.3 mi | 2.9 |
| Rio Lindo Elementary Oxnard | 2.4 mi | 5.5 |
| Norman R. Brekke Elementary Oxnard | 2.9 mi | 8.8 |
| Rio Rosales Oxnard | 3.0 mi | 4.5 |
| Pacifica High Oxnard | 2.9 mi | 4.3 |
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
Community Profile
The community surrounding Rio Mesa High has a median household income of $90,067. It is a community where 19% of adults hold a bachelor's degree or higher. The median home value in the area is $639,800, with a median rent of $1,853/month. The area has a poverty rate of 11.9%. The average commute for residents is 25 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Alisal High Salinas, CA | 6.7 |
| Angelo Rodriguez High Fairfield, CA | 6.7 |
| Central Union High El Centro, CA | 6.7 |
| Cesar E. Chavez High Delano, CA | 6.7 |
| Everett Alvarez High Salinas, CA | 6.7 |
| Franklin High Stockton, CA | 6.7 |
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 is ranked #4006 out of 9,533 schools in CA.
What is Rio Mesa High's MySchoolScout rating?
Rio Mesa High has a composite rating of 6.7 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Rio Mesa High?
Based on the most recent state assessment data, Rio Mesa High has 20.7% math proficiency and 46.7% reading/ELA proficiency.
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
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
- Phone
- (805) 278-5500
- Data Year
- 2023–2024
Resources & Links
District
Oxnard Union High- District Enrollment
- 16,501
- Schools in District
- 12
- Per-Pupil Spending
- $17,707
- District Rank
- #6 of 10
Other Schools in This District
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
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