Chin (John Yehall) Elementary vs Cobb (William L.) Elementary

Chin (John Yehall) Elementary and Cobb (William L.) Elementary sit 2.1 miles apart in San Francisco, both serving kindergarten through fifth grade, but their overall ratings diverge meaningfully. Chin Elementary earns a 9.4/10 versus Cobb Elementary's 9.0/10 — a 0.4-point gap that reflects a larger separation in state standings: Chin ranks #49 of 9,533 California schools while Cobb ranks #241 of the same pool. Both schools place in the top 3% statewide, but Chin's position in the top 0.5% is a significant distinction for academically focused families.

The academic and growth scores tell two different stories. Chin Elementary posts a 10.0/10 academic score against Cobb Elementary's 7.2/10 — a 2.8-point delta that is the sharpest difference between the two schools. Cobb Elementary, however, edges ahead on growth, scoring a 10.0/10 compared to Chin's 9.7/10. That near-perfect growth score at Cobb suggests students there are advancing at an exceptional rate relative to their starting points, which matters for families whose children enter with mixed preparation. Chin's ceiling-level academic score signals stronger absolute proficiency outcomes overall.

On demographics and classroom environment, Cobb Elementary is noticeably smaller — 137 students versus Chin Elementary's 253 — and that size translates directly into a tighter student-teacher ratio: 19.6:1 at Cobb compared to 23.0:1 at Chin. Families who prioritize individual attention will find more of it at Cobb. Both schools serve high proportions of economically disadvantaged students: 75% of Chin's enrollment qualifies for free or reduced lunch versus 66% at Cobb. Neither school should be considered low-needs by that measure, but Chin carries a modestly higher share.

Both Chin and Cobb Elementary serve the same grade band — KG through 5 — so neither offers a programmatic edge in grade span. The core differentiation comes down to the trade-off between Chin Elementary's commanding academic proficiency ranking and Cobb Elementary's exceptional student growth performance inside a substantially smaller school setting.