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Average

#4374 of 9,539 schools in CA

Top 46% in state

Rio Del Mar

Elementary School · Rio Elementary

3150 Thames River, Oxnard, CA 93036

Enrollment

450

Student-Teacher

26.5:1

Score

6.6

Grades

Kindergarten – 5th

Data vintage2022-23

How this school compares

California schools

#4,374 of 9,539

In Oxnard

#11 of 48

public schools

In district

#3 of 9

Rio Elementary

Academic growth

7.8 / 10

Very Good

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Rio Del Mar

6.6/10

Elementary School in Oxnard · grades Kindergarten – 5th. Start here, then compare fit against nearby and district options.

Rio Vista Middle

5.7/10

0.2 mi away. Use as a geographic alternative in the same move search.

Rio Plaza Elementary

4.8/10

0.5 mi away. Use as a geographic alternative in the same move search.

About Rio Del Mar

Rio Del Mar is a public elementary school in Oxnard, CA, part of Rio Elementary. Rio Del Mar serves approximately 450 students, and covers grades Kindergarten-5th, and has a 26.5:1 student-teacher ratio. Rio Del Mar has a current MySchoolScout rating of 6.6 out of 10 and ranks #4,374 of 9,539 schools in CA.

Structured state assessment records for Rio Del Mar show 37% math proficiency (multi-year average, 2009-2024) and 39% reading/ELA proficiency (multi-year average, 2009-2024).

How it compares1.0 pts above district
  • This school 6.6 · Average
  • District avg 5.6
  • CA avg 6.2

What Parents Should Know

Rio Del Mar runs 26.5:1 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 · 3/3 metrics
Student Progress7.8Very Good50%
Year-over-year improvement in student test scores.
View breakdown
Years of Data14
Annual Change-0.88 pts/yr
Data Period2009–2024
TrendStable
Academics6.0Average30%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency33.6% (2024 CAASPP)
Reading/ELA Proficiency35.7% (2024 CAASPP)
Math vs. State Avg-12.1 pts
Reading vs. State Avg-7.1 pts
Overall Proficiency35% (2024 CAASPP, Math+ELA)
Expected (poverty-adj.)39% (model expectation from 2024 CAASPP)
vs. Expected-4.2 pts
Adjusted Percentile43th
Resources & Environment4.3Below Average20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio26.5:1
Per-Pupil Spending$18,362
Chronic Absenteeism23.6%

Rio Del Mar — Students at Rio Del Mar score 35% proficient, which is below what's typical for similar communities (expected: 39%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

63.1%

Students qualifying for federal meal assistance

Test Scores CA CAASPP (2023-24)

Math Proficiency 37.2% (multi-year average, 2009-2024)
School
State
39.4% (2024 CAASPP)
ELA Proficiency 39.0% (multi-year average, 2009-2024)
School
State
45.3% (2024 CAASPP)

Based on 34 test records from CA state assessments. About our data

Proficiency Trend

→ Stable

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

2009
Math
47%
ELA
38%
2010
Math
53%
ELA
35%
2011
Math
58%
ELA
50%
2012
Math
51%
ELA
41%
2014
Math
25%
ELA
34%
2015
Math
38%
ELA
44%
2016
Math
39%
ELA
40%
2017
Math
40%
ELA
45%
2018
Math
42%
ELA
41%
2019
Math
42%
ELA
41%
2020*
Math
18%
ELA
33%
2021*
Math
18%
ELA
33%
2022
Math
30.2%
ELA
44.1%
2024
Math
33%
ELA
35.9%

* 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: 7.8/10.

How Rio Del Mar Compares

See how Rio Del Mar performs across key quality dimensions compared to state benchmarks.

Overall Score
6.6/10
54th percentile in CA
Academic
6.0/10
Average
Growth
7.8/10
Very Good
Environment
4.3/10
Below Average
Gifted & Talented
Yes
Program available

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
63%
Teaching Staff
27:1 student-teacher ratio
17 teachers
Chronic Absenteeism
Students missing 15+ days per year (SY 2022-23)
23.6%

Programs & Offerings

Gifted & Talented Program Available
This school offers a gifted and talented program for qualifying students. · CRDC 2021-22

Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more

Location

3150 Thames River, Oxnard, CA 93036

Nearby Alternatives

Families considering Rio Del Mar may also want to explore other elementary schools in the area. Norman R. Brekke Elementary (rated 7.5/10, 2.0 miles away), which scores slightly higher. Another option is Rio Real Elementary (rated 7.2/10, 1.0 miles away), which scores slightly higher. Additionally, LINDA VISTA ADVENTIST ELEMENTARY SCHOOL (rated 6.0/10, 1.5 miles away), with a comparable rating. For more schools in Oxnard, see our Oxnard schools guide .

Nearby Schools

20 within 2.2 mi
School Distance Rating
Rio Vista Middle Oxnard 0.2 mi 5.7
Rio Plaza Elementary Oxnard 0.5 mi 4.8
Rio del Sol Oxnard 0.8 mi 5.4
Providence Oxnard 0.9 mi 5.0
Rio Real Elementary Oxnard 1.0 mi 7.2
Rio del Valle Middle Oxnard 1.0 mi 6.8
Rio Lindo Elementary Oxnard 1.4 mi 4.9
Rio Mesa High Oxnard 1.4 mi 5.9
LINDA VISTA ADVENTIST ELEMENTARY SCHOOL Oxnard 1.5 mi 6.0
Linda Vista Adventist School Oxnard 1.5 mi
Junipero Serra Elementary Ventura 1.7 mi 4.6
Rio del Norte Oxnard 1.6 mi 5.1
Pacifica High Oxnard 1.8 mi 4.5
Sierra Linda Elementary Oxnard 1.8 mi 4.7
Norman R. Brekke Elementary Oxnard 2.0 mi 7.5
PEPPERMINT JUNCTION Oxnard 2.0 mi 4.5
Peppermint Junction Oxnard 2.0 mi
R.J. Frank Academy of Marine Science & Engineering Oxnard 2.3 mi 7.2
Citrus Glen Elementary Ventura 2.4 mi 3.5
Condor High Oxnard 2.2 mi 7.4

Neighborhood Census ACS (2019-2023)

Census data for ZIP 93036 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$100,482

Median Home Value

$648,800

Median Rent

$2,199/mo

Population

47,938

College Educated

23.7%

Homeownership

51.9%

Avg Commute

24.5 min

Poverty Rate

11.6%

Median Age

35.5

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
ANNELIESE SCHOOLS, INC. Laguna Beach, CA 6.6
Adams Elementary San Diego, CA 6.6
Aldama Elementary Los Angeles, CA 6.6
Allen Avenue Elementary San Dimas, CA 6.6
Altadena Elementary Altadena, CA 6.6
Anderson (Linford L.) Elementary Dixon, CA 6.6

Frequently Asked Questions

Common questions about Rio Del Mar

What grades does Rio Del Mar serve?

Rio Del Mar serves students in grades Kindergarten through 5th.

How many students attend Rio Del Mar?

Rio Del Mar has an enrollment of approximately 450 students.

What is the student-teacher ratio at Rio Del Mar?

The student-teacher ratio at Rio Del Mar is 26.5:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Rio Del Mar rank in CA?

Rio Del Mar ranks #4,374 of 9,539 schools in CA.

What is Rio Del Mar's MySchoolScout rating?

Rio Del Mar has a current MySchoolScout rating of 6.6 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 Del Mar?

Based on loaded state assessment records, Rio Del Mar has 37% math proficiency (multi-year average, 2009-2024) and 39% reading/ELA proficiency (multi-year average, 2009-2024).

Is Rio Del Mar a charter school?

No, Rio Del Mar is not a charter school. It is a traditional public school operated by the local school district.

Is Rio Del Mar a Title I school?

No, Rio Del Mar is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Rio Del Mar?

63.1% of students at Rio Del Mar 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
43 Car-Dependent
Transit Score
27 Some Transit
Bike Score
45 Somewhat Bikeable

Powered by Walk Score

Quick Facts NCES CCD (SY 2022-23)

Grades
Kindergarten – 5th
Enrollment
450
Student-Teacher Ratio
26.5:1
Teachers (FTE)
17
Free/Reduced Lunch
63.1%
Type
regular
Setting
Midsize City
County
Ventura County
Chronic Absenteeism (SY 2022-23)
23.6%

District

Rio Elementary
District Enrollment
5,217
Schools in District
9
Per-Pupil Spending
$18,362
District Rank
#3 of 9

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