Each level is scored on its own scale — elementary, middle, and high are never ranked against each other.
The elementary years
The elementary schools average 58.3/100 — 19.4 points above the state average, with 7 of 9 in the Strong band.
37 points separate the strongest and weakest of these 9 elementary schools — the average hides more than it tells.
Jensen Ranch Elementary (80/100) holds the Strong band — 59.6% of its students exceed the state standard, against a level average of 40.3%. 1 school here ranks as a Growth Engine — returning cohorts gaining more than most schools statewide.
37 points separate the top and bottom elementary schools — the district average won't predict the school in front of you.
The middle years
One school defines the top: Creekside Middle sits 21 points clear of the field — the other 1 middle schools are a different conversation.
2 middle schools span 21 points around an average of 59.9.
Creekside Middle (71/100) holds the Strong band — 40.4% of its students exceed the state standard, against a level average of 33.7%. 1 school here ranks as a Growth Engine — returning cohorts gaining more than most schools statewide.
Only 2 campuses at this level — one school's year moves every number in this chapter.
The high school years
One school defines the top: Castro Valley High sits 16 points clear of the field — the other 2 high schools are a different conversation.
47 points separate the strongest and weakest of these 3 high schools — the average hides more than it tells.
1 continuation/alternative school not plotted — it ranks within its own class, not on this statewide axis.
Castro Valley High (71/100) holds the Strong band — 30.4% of its students exceed the state standard, against a level average of 21.2%. 1 school classifies as Strong All-Around — no weak dimension we measure.
34.2% of students are chronically absent (state: 23.1%) — chronic means missing 10% or more of the school year. Whatever the scores say, ask each school what it is doing about attendance.
What it means for your family
Compare schools at your child’s level before deciding on an address. The strongest attendance-zone candidate is Jensen Ranch Elementary at 80/100 — confirm the exact boundary with the district before the house.
No charters or magnets among the ranked schools here, so the main lever is an intra-district transfer — California districts run them on their own windows and criteria. If your zoned school sits low in the appendix below, ask the district office for this year's dates.
A band is a position, not a prophecy — 2 campuses here rank as Growth Engine, their returning cohorts gaining more than most schools statewide. Ask your school two questions: what happens for a kid who arrives behind, and what the classroom looks like for one who arrives ahead.
The strongest-scoring run through the district:
Jensen Ranch Elementary 98th percentile · StrongScope Score 80/100Creekside Middle 94th percentile · StrongScope Score 71/100Castro Valley High 88th percentile · StrongScope Score 71/100
Top scorers at each level — not necessarily one zoned sequence. Confirm feeder patterns and enrollment zones with the district, and visit before you decide.
What this page can't see: whether a campus feels safe and glad at 8 a.m. If a path above looks workable, the next step is a visit.