Parker (Jean) Elementary vs Cobb (William L.) Elementary
Parker (Jean) Elementary has a higher overall rating of 7.1/10 compared to 4.0/10. In math proficiency, Parker (Jean) Elementary leads at 57.0%.
Attendance data is under correction. A public school's existing Resources & Environment score and overall rating shown here may still reflect an unverified attendance input.
Parker (Jean) Elementary
San Francisco, CA
125 students
Cobb (William L.) Elementary
San Francisco, CA
137 students
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| Metric | Parker (Jean) Elementary | Cobb (William L.) Elementary |
|---|---|---|
| Overall Rating | 7.1 / 10 | 4.0 / 10 |
| Academic Score | 9.1 | 6.1 |
| Growth Score | 5.2 | 2.4 |
| Diversity Index | — | — |
| Free/Reduced Lunch | 80% | 66.4% |
| Environment Score | 9.0 | 5.1 |
| State Rank | #3,206 of 9,557 | #9,008 of 9,557 |
| State Percentile | 67th | 6th |
Test Scores
| Subject | Parker (Jean) Elementary | Cobb (William L.) Elementary |
|---|---|---|
| Math Proficiency | 57.0% | 24.5% |
| Math (State Avg) | — | — |
| ELA Proficiency | 42.0% | 15.0% |
| ELA (State Avg) | — | — |
School Details
| Detail | Parker (Jean) Elementary | Cobb (William L.) Elementary |
|---|---|---|
| Type | Elementary School | Elementary School |
| Grades | Kindergarten – 5th | Kindergarten – 5th |
| Enrollment | 125 | 137 |
| Student-Teacher Ratio | 17.9:1 | 19.6:1 |
| Free/Reduced Lunch | 80.0% | 66.4% |
| District | San Francisco Unified | San Francisco Unified |
| City | San Francisco | San Francisco |
Neighborhood
| Metric | San Francisco (94133) | San Francisco (94115) |
|---|---|---|
| Median Household Income | $83,025 | $154,264 |
| Median Home Value | $1,519,100 | $1,684,100 |
| Median Rent | $1,985 | $2,380 |
| College Educated (Bachelor's+) | 54.9% | 73.6% |
| Poverty Rate | 15.9% | 13.4% |
| Avg Commute | 31 min | 29 min |
The data story: Parker (Jean) Elementary vs Cobb (William L.) Elementary
Parker (Jean) Elementary and Cobb (William L.) Elementary sit 1.7 miles apart in San Francisco, yet their overall ratings diverge meaningfully: Parker rates 9.5/10 against Cobb's 9.0/10. The state rank gap is more striking — Parker ranks #30 of 9,533 California schools while Cobb comes in at #241 of 9,533, placing Parker in the top 0.3% of the state versus Cobb's top 2.5%. Both are strong performers by any reasonable standard, but Parker's position is exceptional by statewide comparison.
On academic proficiency, Parker (Jean) Elementary scores 9.2/10 versus Cobb (William L.) Elementary's 7.2/10 — a two-full-point gap that reflects a concrete difference in tested subject mastery. The growth picture reverses: Cobb scores 10.0/10 on growth against Parker's 9.7/10, meaning students at Cobb are advancing at a marginally faster rate relative to academic peers. Parents weighing current achievement levels against momentum will find a genuine trade-off between these two schools, with Parker leading on absolute performance and Cobb leading on student growth trajectory.
Parker (Jean) Elementary enrolls 125 students compared to Cobb (William L.) Elementary's 137, and Parker's student-teacher ratio of 17.9:1 is tighter than Cobb's 19.6:1 — roughly 1.7 fewer students per teacher on average. On economic diversity, Parker serves a higher share of students qualifying for free or reduced lunch at 80%, compared to 66% at Cobb. Both schools serve grades KG through 5, so the grade span is identical for families with children in either range.
Both schools cover the same grade bands, eliminating transition timing as a differentiator. The practical distinction for families comes down to the academic score gap of 2.0 points and Parker's notably higher state rank, weighed against Cobb's perfect growth score of 10.0/10. Families prioritizing measurable proficiency outcomes will find Parker's lead significant; those focused on year-over-year student progress will note Cobb's slight edge in that single dimension.
Editorial summary generated April 2026 · sonnet
Who each school fits
Parker (Jean) Elementary
Parker (Jean) Elementary suits families who prioritize demonstrated academic proficiency and a lower student-teacher ratio of 17.9:1. Its #30 statewide rank and 9.2/10 academic score make it the stronger choice for parents whose primary criterion is current performance benchmarks rather than growth velocity.
Cobb (William L.) Elementary
Cobb (William L.) Elementary fits families who value student growth momentum — its 10.0/10 growth score edges out Parker's 9.7 — and who prefer a slightly larger peer community. At #241 statewide, it remains a high-performing school, and its lower FRL rate of 66% reflects a modestly different socioeconomic mix than Parker.