American Canyon · Napa County
Schools in ZIP code 94503
Two districts run the ranked public schools in ZIP code 94503: Napa Valley Unified (elementary and high) and Mt. Diablo Unified (middle). The 2 public elementary schools in ZIP code 94503 run from the 59th to the 71st percentile among the 5,726 California elementary schools we score (spring 2026 tests).
Elementary · 2 schools · Napa Valley Unified
from 59th to 71st · among 5,726 California elementary schools we score · spring 2026 tests
- Canyon Oaks Elementary: 71st percentile, Solid
- Napa Junction Elementary: 59th percentile, Solid
One dot per school.
A ZIP code doesn’t decide which school a child attends. Confirm the school for your address with the district.
Middle and high school pictures
Middle · 1 school · Mt. Diablo Unified
at 81st · among 2,529 California middle schools we score · spring 2026 tests
- Pleasant Hill Middle: 81st percentile, Strong
High · 1 school · Napa Valley Unified
at 57th · among 1,498 California high schools we score · spring 2025 tests
- American Canyon High: 57th percentile, Solid
One dot per school. Each stage is placed only among California schools at its own level.
Schools around ZIP code 94503
4 listed public schools with mapped locations.
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Percentile among California schools at the same level
- Strong75th+
- Solid50–74th
- Developing25–49th
- Needs Supportbelow 25th
- Not scored
The school lists on this page are also available without the map.
Elementary schools
Which elementary schools in ZIP code 94503 score highest?
Canyon Oaks Elementary is highest, at the 71st percentile.
That’s higher than 71 in 100 of the 5,726 California elementary schools we score (spring 2026 tests).
Highest in ZIP code 94503
Each percentile compares a school with California schools at its own level. What patterns mean
- Canyon Oaks ElementaryNapa Valley Unified · Grade-to-grade gains
- Napa Junction ElementaryNapa Valley Unified
Middle schools
Where does the middle school we score in ZIP code 94503 stand?
Pleasant Hill Middle is at the 81st percentile.
That’s higher than 81 in 100 of the 2,529 California middle schools we score (spring 2026 tests). It’s the only public middle school we score in ZIP code 94503.
Each percentile compares a school with California schools at its own level. What patterns mean
- Pleasant Hill MiddleMt. Diablo Unified · Grade-to-grade gains
High schools
Where does the high school we score in ZIP code 94503 stand?
American Canyon High is at the 57th percentile.
That’s higher than 57 in 100 of the 1,498 California high schools we score (spring 2025 tests). It’s the only public high school we score in ZIP code 94503.
Each percentile compares a school with California schools at its own level.
- American Canyon HighNapa Valley Unified
1 private school has an address in ZIP code 94503. It doesn’t take California’s state tests, so we don’t score it. See it in the private-school directory →
Which places nearby can you look at next?
Nearby ZIP codes
More places (8)
School districts
City
Before kindergarten
Common questions
Which public schools in ZIP code 94503 rank highest?
Does living in ZIP code 94503 decide which school my child attends?
More questions (2)
Are the public schools in ZIP code 94503 good?
Where do these results come from?
Sources and methodology
This page lists the schools with a 94503 mailing address. Attendance zones follow school districts rather than postal boundaries.
Data source: California Department of Education · CAASPP 2025–26 elementary and middle school; 2024–25 high school
Percentiles, bands and Scope Scores are SchoolScope’s own calculations from these state files.
Download these schools (CSV)Free to use under CC BY 4.0 with attribution.