Cobb (William L.) Elementary

As a rural-scale elementary school in San Francisco, California, Cobb (William L.) Elementary hosts 134 students from grades K through 5, part of San Francisco Unified. Compared to the state average of about 465 students per school, that is 71% leaner than typical.

San Francisco Unified comprises 106 schools with combined enrollment of 48,706 students; Cobb (William L.) Elementary is among them.

Looking at the student body, Cobb (William L.) Elementary records that 34% of students identify as Black, with the remaining enrollment distributed across several groups. Other groups include 31% Hispanic, 17% multiracial, 10% Asian, 8% White. The wider county runs roughly 5% Black, putting the school's mix meaningfully more Black than the area baseline.

On the income-and-resources front, The school currently runs with 7 full-time-equivalent teachers, for a student-teacher ratio near 20.6:1. Statewide, the average ratio sits near 22.3:1, putting Cobb (William L.) Elementary tighter than the state norm the norm. About 70% of enrolled students meet the income threshold for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. By comparison, San Francisco County runs at roughly 54%, so the school's eligibility rate is higher than the surrounding baseline.

Adjusting for the school's free-and-reduced-lunch share, Cobb (William L.) Elementary sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 37.7%; this one delivers 40.7%.

In the broader community, San Francisco County reports that the typical household earns roughly $140,970 per year, 60% of adults hold a bachelor's degree or higher, and census figures put the poverty rate at about 6%. Cobb (William L.) Elementary is one of 132 public schools in San Francisco County (combined enrollment of about 56,505 students).

Nearest neighbor: KIPP San Francisco Bay Academy, around 0.3 miles off. Counting just inside five miles, 8 other public schools cluster around Cobb (William L.) Elementary. Ranking that nearby cluster on reported proficiency puts Cobb (William L.) Elementary at 3rd of 4; the average score across the group is 41.1%.

Geographically, the school is in a metropolitan area.

Looking at the recent track record. Looking back 7 years, enrollment at Cobb (William L.) Elementary has expanded 6%, going from 126 students in 2018 to 134 in 2025. The Hispanic share of enrollment grew from 17% to 31% over that span. The student-to-teacher ratio rose from 18.0:1 in 2018 to 20.6:1 today.

On this page, the page collects discussion, questions, and updates around enrollment questions, classroom assignments, and PTA news. Parents, students, alumni, and staff are welcome to weigh in.