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#5699 of 9,539 schools in CA

Rio Mesa High

High School · Oxnard Union High · Oxnard, CA

An Oxnard Union High high school where students score 7 points below what's typical for similar communities.

545 Central Ave., Oxnard, CA 93030

  • Math 15% vs CA 32% (2024)
  • Reading 46% vs CA 52% (2024)
  • 85.0% 4-year graduation

Academics

Full Profile · 4/4 metrics
Student Progress5.4Average25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data14
Annual Change-1.64 pts/yr
Data Period2009–2024
TrendDeclining
Academics5.4Average25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency14.9% (2024 CAASPP)
Reading/ELA Proficiency46.4% (2024 CAASPP)
Math vs. State Avg-13.1 pts
Reading vs. State Avg-9.5 pts
Overall Proficiency31% (2024 CAASPP, Math+ELA)
Expected (poverty-adj.)38% (model expectation from 2024 CAASPP)
vs. Expected-6.9 pts
Adjusted Percentile35th
College Readiness7.1Very Good30%
Graduation rates, AP course participation, and IB availability.
View breakdown
4-Year Graduation Rate85%
AP Participation9.3%
IB ProgramYes
Resources & Environment5.2Average20%
Student-teacher ratio, district spending per student, and attendance.
View breakdown
Student-Teacher Ratio23.9:1
District spending per student$17,707
Chronic Absenteeism27.1%

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

How we calculate scores →

2024 CAASPP proficiency

Most recent published year. School vs. CA average.

Math Proficiency15%(2024 CAASPP)
School
State
32%(2024 CAASPP)
ELA Proficiency46%(2024 CAASPP)
School
State
52%(2024 CAASPP)

Trend

→ Steady

Proficiency is down 16 points across the 16-year record (2009–2024) and has held near 31% recently.

Show all 14 years
2009
Math
46%
ELA
48%
2010
Math
50%
ELA
56%
2011
Math
54%
ELA
50%
2012
Math
53%
ELA
52%
2013
Math
56%
ELA
55%
2014
Math
25%
ELA
49%
2015
Math
26%
ELA
44%
2016
Math
22%
ELA
46%
2017
Math
23%
ELA
36%
2018
Math
24%
ELA
46%
2019
Math
24%
ELA
46%
2020*
Math
29%
ELA
48%
2021*
Math
29%
ELA
48%
2024
Math
15%
ELA
46%

Multi-year averages used by the rating model: math 33% (multi-year average, 2009-2024) · reading/ELA 48% (multi-year average, 2009-2024)

* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.

Based on 30 test records from CA state assessments and EdFacts (NCES).

Equity & diversity

Shown separately, not included in the overall score

Free/reduced lunch

65.3%

Students qualifying for federal meal assistance

How we rate schools

A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.

See how we rate

The neighborhood

Where Rio Mesa High sits, and what the surrounding area looks like.

Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries.

Getting around & local context

  • Walk 12Car-Dependent
  • Bike 29Somewhat Bikeable
  • City Safety: High2,500/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · city context (Oxnard), not school-level safety or attendance eligibility. Source details

Source period: 2024. Freshness not available.

Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)

Median income

$90,067

Median home value

$639,800

Median rent

$1,853/mo

College educated

18.6%

Homeownership

45.5%

Poverty rate

11.9%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 93030; this is area context, not an attendance boundary.

Programs & students

Programs & Offerings

AP/IB Programs2AP courses offeredIB Programme
9.3% participation·State avg: 2.6 AP courses·452 IB enrolled·CRDC via Urban Institute · SY 2021–22
Athletics24sports offered
13 boys'·11 girls'·47 teams (incl. JV)·CRDC via Urban Institute · SY 2021–22
Advanced STEM Courses5of 5 advanced subjects offered
Algebra II, Advanced Math, Calculus, Chemistry, Physics·CRDC via Urban Institute · SY 2021–22

Compare nearby

Nearby same-level schools

4 from a 5-mile search; district fallback available

SchoolScoreGradesDistanceEnrollmentCompare
ProvidenceEnrollment path unverified5.0K–120.8 mi52Compare →
Condor HighEnrollment path unverified7.49–122.5 mi422Compare →
Pacifica HighEnrollment path unverified4.59–122.9 mi2,928Compare →
Taheem Johnson, Inc.Private · tuitionNot ratedK–123.9 mi121Compare →

Distance is proximity only; it is not attendance eligibility.

Enrollment path unverified: Potential public school; its attendance or application path has not been classified.

Private · tuition: Potential private option; tuition and admission requirements have not been verified.

Oxnard Union High

Schools in district
12
Rank in district
#5 of 10
District spending per student
$17,707NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
14.3%Census SAIPE · 2024

Rio Mesa High is listed in Oxnard Union High; a district label does not verify attendance for an address.

About Rio Mesa High

Rio Mesa High is a public high school in Oxnard, CA, part of Oxnard Union High, serving approximately 2,078 students in grades 9th-12th with a 23.9:1 student-teacher ratio. It holds a MySchoolScout rating of 5.9 out of 10 and ranks #5,699 of 9,539 schools in CA. State assessment records show 33% math proficiency (multi-year average, 2009-2024) and 48% reading/ELA proficiency (multi-year average, 2009-2024).

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.

School factsNCES Common Core of Data (CCD) (SY 2023–24)

Grades
9th – 12th
Enrollment
2,078
Student-Teacher Ratio
23.9:1
Teachers (FTE)
87
Type
regular
Setting
Large Suburb
County
Ventura County
Chronic Absenteeism (SY 2022-23)
27.1%
4-Year Graduation
85.0%
Area population (ZIP 93030)
58,573
Area average commute
24.6 min
Area median age
34.2
About this school's data

Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.

School directory (enrollment, grades, staff, contact)
NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
  • Source period: SY 2023–24. A newer release may be available.
MySchoolScout rating and rank
MySchoolScout ranking model · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
Math proficiency
State department of education · 2024 CAASPP · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2024 CAASPP. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Reading/ELA proficiency
State department of education · 2024 CAASPP · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: 2024 CAASPP. A newer release may be available.
  • Derived from source records rather than read directly from one field.
Student progress (growth)
NCES EdFacts · Mixed source periods · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
Neighborhood (income, housing, education)
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
  • Older source: ACS 2019–2023 5-year estimates. Use as historical context.
  • Reported for the ZCTA for ZIP 93030; this does not measure the attendance area.
Programs (AP/IB, athletics, gifted)
CRDC via Urban Institute · SY 2021–22 · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: SY 2021–22. A newer release may be available.

Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2024; directory SY 2023–24

About our data · How we calculate scores

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