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Very Good

#2654 of 9,533 schools in CA

Top 28% in state

Old River Elementary

Elementary School · Knightsen Elementary

PO Box 265, Knightsen, CA 94548

Enrollment

309

Student-Teacher

23.8:1

Score

7.3

Grades

Kindergarten – 8th

Updated 2022-23

How this school compares

In Knightsen

#1 of 2

public schools

California elementary schools

#1,796 of 5,817

In district

#1 of 2

Knightsen Elementary

Academic growth

9.3 / 10

Exceptional

About Old River Elementary

Old River Elementary serves 309 students in grades kindergarten through eighth in Knightsen, California, operating with a student-teacher ratio of 23.8 to 1 across 13 full-time equivalent teachers. This regular public school has earned strong recognition, ranking in the 78th percentile statewide at #2078 out of 9566 California schools with a MySchoolScout rating of 7.2 out of 10. Academically, Old River Elementary demonstrates solid performance with 58% of students achieving proficiency or above in English Language Arts and 50% reaching proficiency in mathematics.

The school's academic score of 7.9 out of 10 reflects its commitment to student achievement across all grade levels. The school draws from an affluent community where the median household income reaches $166,597 and the median home value is $1,041,700. With only 2.7% of residents living in poverty and 41% holding bachelor's degrees or higher, the area provides a supportive educational environment.

The small ZIP code population of just 598 residents creates an intimate community atmosphere. Old River Elementary sits in a rural setting near town, offering students the benefits of both countryside tranquility and access to community resources in Contra Costa County.

What Parents Should Know

The student-teacher ratio at Old River Elementary is 23.8:1, 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.

Located in a rural area, Old River Elementary may involve longer commutes for some families. Rural schools often serve as community anchors and may have smaller class sizes, but parents should consider transportation logistics, after-school program availability, and access to specialized services.

Score Breakdown

Full Profile · 3/3 metrics
Student Progress9.3Exceptional50%
Year-over-year improvement in student test scores.
View breakdown
Years of Data2
Annual Change+1 pts/yr
Data Period2019–2024
TrendImproving
Academics6.7Above Average30%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency49.7%
Reading/ELA Proficiency58.6%
Math vs. State Avg+4 pts
Reading vs. State Avg+15.8 pts
Overall Proficiency54%
Expected (poverty-adj.)67%
vs. Expected-12.5 pts
Adjusted Percentile53th
College ReadinessNot Available

Data not available for this school

Resources & Environment3.3Fair20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio23.8:1
Per-Pupil Spending$12,284

Old River Elementary — Students at Old River Elementary score 54% proficient, which is below what's typical for similar communities (expected: 67%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

15.5%

Students qualifying for federal meal assistance

Test Scores CA CAASPP (2023-24)

Math Proficiency 49.7%
School
State
36.8%
ELA Proficiency 58.0%
School
State
45.8%

Based on 16 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
47%
ELA
52%
2024
Math
50.1%
ELA
58.9%

Source: EdFacts (NCES) and state assessment data. Growth score: 9.3/10.

How Old River Elementary Compares

See how Old River Elementary performs across key quality dimensions compared to state benchmarks.

Overall Score
7.3/10
72th percentile in CA
Academic
6.7/10
6.7/10
Growth
9.3/10
Above average
Environment
3.3/10
Below average

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
16%
Teaching Staff
24:1 student-teacher ratio
13 teachers

Location

PO Box 265, Knightsen, CA 94548

Nearby Alternatives

Families considering Old River Elementary may also want to explore other elementary schools in the area. Timber Point Elementary (rated 7.2/10, 1.9 miles away, in nearby Discovery Bay), with a very similar rating. Another option is Knightsen Elementary (rated 6.6/10, 3.2 miles away), with a comparable rating. Additionally, Discovery Bay Elementary (rated 6.3/10, 2.6 miles away, in nearby Discovery Bay), with a comparable rating. For more schools in Knightsen, see our Knightsen schools guide .

Nearby Schools

20 within 4.9 mi
School Distance Rating
Loe Hart School Discovery Bay 1.0 mi
Timber Point Elementary Discovery Bay 1.9 mi 7.2
Byron Institute for Independent Study Discovery Bay 1.9 mi
ALL GOD'S CHILDREN CHRISTIAN SCHOOL Discovery Bay 2.6 mi 4.6
All God's Children Christian School Discovery Bay 2.6 mi
Discovery Bay Elementary Discovery Bay 2.6 mi 6.3
Summer Lake Elementary Oakley 3.4 mi 5.3
Knightsen Elementary Knightsen 3.2 mi 6.6
Excelsior Middle Byron 4.1 mi 5.9
La Paloma High (Continuation) Brentwood 3.5 mi 6.0
Mary Casey Black Elementary Brentwood 3.9 mi 5.2
Garin Elementary Brentwood 3.9 mi 5.3
Edna Hill Middle Brentwood 3.9 mi 6.0
Liberty High Brentwood 4.1 mi 6.3
LOVE FOR LEARNING Brentwood 4.1 mi
Celebration Center Brentwood 4.2 mi
Independence High Brentwood 4.2 mi 7.4
Brentwood Elementary Brentwood 4.8 mi 5.6
Gehringer Elementary Oakley 5.2 mi 5.5
Marsh Creek Elementary Brentwood 4.9 mi 4.6

Neighborhood Census ACS (2019-2023)

Census data for ZIP 94548 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$183,100

Median Home Value

$918,100

Population

637

College Educated

33.9%

Homeownership

100%

Poverty Rate

3.1%

Median Age

29.6

Community Profile

The community surrounding Old River Elementary has a median household income of $183,100. It is an area where 34% of adults hold a bachelor's degree or higher. The median home value in the area is $918,100. The local poverty rate of 3.1% is relatively low. Source: U.S. Census ACS 2022 5-Year Estimates.

Similar Schools

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

School Rating
ANNUNCIATION ELEMENTARY SCHOOL Stockton, CA 7.3
Abram Agnew Elementary San Jose, CA 7.3
Aileen Colburn Elementary Atwater, CA 7.3
Almaden Elementary San Jose, CA 7.3
Amy Imai Elementary Mountain View, CA 7.3
Bay View Elementary Santa Cruz, CA 7.3

Frequently Asked Questions

Common questions about Old River Elementary

What grades does Old River Elementary serve?

Old River Elementary serves students in grades Kindergarten through 8th.

How many students attend Old River Elementary?

Old River Elementary has an enrollment of approximately 309 students.

What is the student-teacher ratio at Old River Elementary?

The student-teacher ratio at Old River Elementary is 23.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Old River Elementary rank in CA?

Old River Elementary is ranked #2654 out of 9,533 schools in CA.

What is Old River Elementary's MySchoolScout rating?

Old River Elementary has a composite rating of 7.3 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 Old River Elementary?

Based on the most recent state assessment data, Old River Elementary has 49.7% math proficiency and 58.0% reading/ELA proficiency.

Is Old River Elementary a charter school?

No, Old River Elementary is not a charter school. It is a traditional public school operated by the local school district.

Is Old River Elementary a Title I school?

No, Old River Elementary is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Old River Elementary?

15.5% of students at Old River Elementary 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
6 Car-Dependent
Bike Score
34 Somewhat Bikeable
County Safety
Low (243/100K)

Powered by Walk Score

FBI UCR 2024. County-level only. Data >1 year old.

Quick Facts NCES CCD (SY 2022-23)

Grades
Kindergarten – 8th
Enrollment
309
Student-Teacher Ratio
23.8:1
Teachers (FTE)
13
Free/Reduced Lunch
15.5%
Type
regular
Setting
Fringe Rural
County
Contra Costa County
Data Year
2023–2024

District

Knightsen Elementary
District Enrollment
596
Schools in District
2
Per-Pupil Spending
$13,146
District Rank
#1 of 2

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.

Read our full methodology

Related reading

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