Stone Bridge
Elementary school in Napa, CA · Napa Valley Unified · Grades K-8 · Charter
On the spring 2026 state tests, 40% of Stone Bridge students met or exceeded California's reading (ELA) standard and 30% met the math standard. In reading, that is 9 points below the California average (49%). Its reading result is higher than 37% of Bay Area elementary schools, and it ranks 6th of 14 public elementary schools in Napa. Reading results in 2026 were 2 points lower than in 2024, and math results were 3 points lower than in 2024.
Test scores, 2024 to 2026
| Subject | Spring 2024 | Spring 2025 | Spring 2026 | Change |
|---|---|---|---|---|
| Reading (ELA) | 42% | 42% | 40% | −2 pts |
| Math | 33% | 28% | 30% | −3 pts |
Compared with nearby averages
| Spring 2026 | Reading (ELA) | Math |
|---|---|---|
| Stone Bridge | 40% | 30% |
| Napa County | 44% | 32% |
| California | 49% | 38% |
Results by grade, spring 2026
| Grade | Reading (ELA) | Math |
|---|---|---|
| 3rd grade | 23% | 13% |
| 4th grade | 25% | 14% |
| 5th grade | 48% | 38% |
| 6th grade | 41% | 17% |
| 7th grade | 56% | 56% |
| 8th grade | 50% | 46% |
Students are tested in grades 3 to 8 and 11. Each grade is a different group of students, so differences between grades are not a trend.
Homes near Stone Bridge
The typical home value in ZIP code 94558, where Stone Bridge is located, is $892K, down 0.9% over the past year (Zillow Home Value Index). Prices inside the school's attendance zone can differ.
Charter schools usually admit by application or lottery, so where you live may not decide whether your child can attend.
Nearby elementary schools
| Distance | School | Reading (ELA) | Math | Typical home value (ZIP) |
|---|---|---|---|---|
| 1.3 mi | Phillips ElementaryNapa · Grades P-5 | 22% | 21% | $784K |
| 1.5 mi | Alta Heights ElementaryNapa · Grades K-5 | 43% | 47% | $784K |
| 2.4 mi | Shearer ElementaryNapa · Grades P-8 | 24% | 17% | $784K |
| 2.8 mi | Vichy ElementaryNapa · Grades K-7 | 60% | 63% | $892K |
| 2.9 mi | McPherson ElementaryNapa · Grades K-5 | 18% | 14% | $892K |
| 3.2 mi | Napa Valley Language AcademyNapa · Grades K-5 | 36% | 34% | $892K |
School details
- Address
- 1019 2nd Avenue, Napa, CA 94558
Get directions · See it on our map - Phone
- (707) 252-5522
- District
- Napa Valley Unified
- County
- Napa County
- Grades
- K-8
- Students
- 282 (2025-26)
- Type
- Elementary school · Traditional · Charter
- Opened
- 2005
- Website
- www.stonebridgeschool.org
- State school code
- 28662660108605
Common questions
How did Stone Bridge do on state tests?
In spring 2026, 40% of students met or exceeded the reading (ELA) standard and 30% met the math standard, compared with 49% and 38% across California.
How many students attend Stone Bridge?
282 students were enrolled in the 2025-26 school year, in grades K-8.
How much do homes cost near Stone Bridge?
The typical home value in ZIP code 94558, where Stone Bridge is located, is $892K, down 0.9% over the past year (Zillow Home Value Index). Prices inside the school's attendance zone can differ.
Does living near Stone Bridge guarantee a spot?
No. As a charter school it usually admits by application or lottery rather than by address.