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
Enrollment
309
Student-Teacher
23.8:1
Score
7.3
Grades
Kindergarten – 8th
Updated
2022-23
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 metricsView breakdown
View breakdown
Data not available for this school
View breakdown
Old River Elementary — Students at Old River Elementary score 54% proficient, which is below what's typical for similar communities (expected: 67%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
15.5%
Students qualifying for federal meal assistance
Test Scores CA CAASPP (2023-24)
Based on 16 test records from CA state assessments. About our data
Proficiency Trend
→ StableAverage proficiency (% at or above grade level) across Math & ELA over time.
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.
Funding & Resources
Performance Trends
Math proficiency has improved from 47% (2019) to 49.71% (2024). Reading/ELA proficiency has improved from 52% (2019) to 58.62% (2024).
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.
Explore More Schools
Neighborhood Context
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
- Phone
- (925) 626-3330
- Data Year
- 2023–2024
Resources & Links
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 methodologyRelated reading
- Best Elementary Schools in America: 2026 Rankingsbest schools
- Best Public Schools in California 2026: Top-Ranked Elementary, Middle & High Schoolsbest schools
- Best School Districts to Move To in 2026: A Data-Driven Guidebest schools
- Best Schools in Los Angeles, CA — 2026 Rankingsbest schools
- Best Schools in San Diego, CA — 2026 Rankingsbest schools
Get school insights in your inbox
New rankings, best-schools lists, and parent guides — delivered free. No spam, unsubscribe anytime.
We respect your privacy. Unsubscribe at any time.