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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

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

Full Profile · 4/4 metrics
Student Progress6.2Above Average25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data3
Annual Change-0.95 pts/yr
Data Period2019–2024
TrendStable
Academics5.3Average25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency14.9%
Reading/ELA Proficiency46.4%
Math vs. State Avg-13.1 pts
Reading vs. State Avg-9.5 pts
Overall Proficiency31%
Expected (poverty-adj.)38%
vs. Expected-7.1 pts
Adjusted Percentile35th
College Readiness9.2Exceptional30%
Graduation rates, AP course participation, and IB availability.
View breakdown
AP Participation9.3%
IB ProgramYes
Resources & Environment5.1Average20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio23.9:1
Per-Pupil Spending$15,745

Rio Mesa High — Students at Rio Mesa High score 31% proficient, which is below what's typical for similar communities (expected: 38%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

65.3%

Students qualifying for federal meal assistance

Test Scores CA CAASPP (2023-24)

Math Proficiency 20.7%
School
State
31.8%
ELA Proficiency 46.7%
School
State
51.5%

Based on 8 test records from CA state assessments. About our data

Proficiency Trend

→ Stable

Average proficiency (% at or above grade level) across Math & ELA over time.

2019
Math
24%
ELA
46%
2021*
Math
29%
ELA
48%
2024
Math
14.9%
ELA
46.4%

* 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.

Overall Score
6.7/10
58th percentile in CA
Academic
5.3/10
5.3/10
Growth
6.2/10
Above average
Environment
5.1/10
Above average

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
65%
Teaching Staff
24:1 student-teacher ratio
87 teachers

Programs & Offerings

AP/IB Programs IB Programme
9.3% participation·452 IB enrolled·CRDC 2020-21

Data as of 2020-21 · 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 7.0/10, 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.

11 schools nearby View map →

Neighborhood Context

Walk Score
14 Car-Dependent
Bike Score
29 Somewhat Bikeable
City Safety
High (2,500/100K)

Powered by Walk Score

FBI UCR 2024. City-level (Oxnard). Data >1 year old.

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
Data Year
2023–2024

District

Oxnard Union High
District Enrollment
16,501
Schools in District
12
Per-Pupil Spending
$17,707
District Rank
#6 of 10

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.

Read our full methodology

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