Enrollment
134
Elementary
DISTRICT 328 · STATE 465
SCHOOL COMMUNITY·SAN FRANCISCO UNIFIED·NCES 063441005681
Cobb (William L.) Elementary
2725 California St., San Francisco, CA 94115 · (415) 749-3505 · San Francisco County
GRADES KG–05ELEMENTARY11-CITYTITLE IREGULAR SCHOOL134 STUDENTS
C+
allk12 Grade
Scored higher than 38% of California public elementary schools
- B-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- B-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- DThree-year trend Change in reading and math proficiency over the last three test years.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded California public elementary schools
Student : Teacher
20.6:1
7 FTE teachers
DISTRICT 22.8:1 · STATE 22.3:1
Free / Reduced Lunch
70%
94 students
DISTRICT 57% · STATE 65%
Community
0
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Kindergarten | 35 | 26% |
| Grade 1 | 21 | 16% |
| Grade 2 | 21 | 16% |
| Grade 3 | 19 | 14% |
| Grade 4 | 17 | 13% |
| Grade 5 | 21 | 16% |
This year's kindergarten class (35) is 67% larger than its 5th grade class (21).
Student demographics
74%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 73% · STATE 62% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
QUIET COMMUNITY
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START A DISCUSSIONTest scores
CAASPP 2024-25 . % met or exceeded standardEnglish Language Arts
37.9%
CA avg 49.1% . +18.9pp since 2014
Math
34.5%
CA avg 37.7% . +20.5pp since 2014
What this means: On the CAASPP, California's statewide test, about 38 of every 100 students at this school read and write at grade level and about 34 of 100 do math at grade level. Across all California schools, those numbers are about 49 and 38. Reading and writing scores are up about 19 points since 2014, while math scores are up about 20 points.
Performance levels, 2024-25
| Subject | Standard Exceeded | Standard Met | Standard Nearly Met | Standard Not Met |
|---|---|---|---|---|
| English Language Arts | 15.5% | 22.4% | 24.1% | 37.9% |
| Math | 5.2% | 29.3% | 36.2% | 29.3% |
Share of tested students at each CAASPP level. Each student counts in one level, so a row adds to about 100%.
CAASPP results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 37.9% | 34.5% |
| 2023-24 | 40.4% | 40.4% |
| 2022-23 | 41.2% | 56.9% |
| 2021-22 | 41.7% | 54.0% |
| 2018-19 | 19.1% | 23.4% |
| 2017-18 | 14.6% | 18.8% |
| 2016-17 | 21.8% | 25.0% |
| 2015-16 | 19.0% | 16.0% |
| 2014-15 | 19.0% | 14.0% |
% met or exceeded standard, all students and all tested grades.
Source: CAASPP. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
38.3%
composite math + reading, all grades
Predicted
38.4%
based on CA schools with similar FRL share
Beats by
-0.2pp
below demographic expectation
What this means: About 38% of students here test proficient in math and reading, compared with the roughly 38% typical for California schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among California's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Cobb (William L.) Elementary
Cobb (William L.) Elementary's state test result (38.3% proficient) is higher than 4 of the 4 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Cobb (William L.) Elementary this school | 134 | 70.1% | 38.3% |
| Westport Heights Elementary Los Angeles | 166 | 81.9% | 36.6% |
| Caroline Wenzel Elementary Sacramento | 211 | 77.7% | 13.8% |
| Stege Elementary Richmond | 225 | 77.3% | 7.6% |
| Wilshire Crest Elementary Los Angeles | 154 | 78.6% | 34.1% |
| New Los Angeles Charter Elementary Los Angeles | 160 | 78.1% | N/A |
Matched among California elementary schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Cobb (William L.) Elementary ranks
Among elementary schools| Measure | This school | In California | In San Francisco County |
|---|---|---|---|
| State test proficiency ranked highest first | 38.3% | #2,639 of 5,151 | #43 of 69 |
| Math proficiency ranked highest first | 34.5% | #2,792 of 5,172 ▼ 634 | #42 of 69 no change |
| Reading proficiency ranked highest first | 37.9% | #3,138 of 5,172 ▼ 447 | #45 of 69 ▼ 2 |
| 3-year test score change ranked biggest drop first | -11.7pp | #81 of 5,116 | #9 of 67 |
| Enrollment ranked largest first | 134 | #5,558 of 5,915 | #70 of 81 |
| Free and reduced lunch ranked highest share first | 70.1% | #2,947 of 5,625 | #25 of 74 |
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
134
-7 (-5%) vs 2020
-52% since 1990-91, when it was 282
Student : Teacher
20.6:1
was 17.6:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 134 | 6.5 | 20.6:1 | 70% (94) |
| 2023-24 | 137 | 7 | 19.6:1 | 66% (91) |
| 2022-23 | 136 | 8 | 17.0:1 | 75% (102) |
| 2020-21 | 141 | 8 | 17.6:1 | 67% (94) |
| 2017-18 | 126 | 7 | 18.0:1 | 67% (85) |
| 2015-16 | 109 | 7 | 15.6:1 | 70% (76) |
| 2010-11 | 182 | N/A | N/A | 73% (132) |
| 2000-01 | 233 | 13 | 17.9:1 | 73% (170) |
| 1990-91 | 282 | 12 | 23.5:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Cobb (William L.) Elementary.
Since 2017-18: students up 6% (126 to 134); teachers down 7% (7 to 6.5).
About Cobb (William L.) Elementary
Cobb (William L.) Elementary, a small elementary school, is located in San Francisco, California. School enrollment was 134 students in 2024-25, in kindergarten through 5. For comparison, elementary schools in California average about 465 students.
Cobb (William L.) Elementary is one school in San Francisco Unified, a system of 106 schools with 48,706 students.
No single group makes up more than half of enrollment at Cobb (William L.) Elementary. The largest is Black students, at 34%. The next largest groups are 31% Hispanic, 17% multiracial, 10% Asian, and 8% White. In San Francisco County overall, about 5% of residents are Black. Pick two students at random and there is a 74% chance they belong to different racial or ethnic groups; that figure is the school's diversity index.
Federal data list 6.5 full-time-equivalent teachers at Cobb (William L.) Elementary in 2024-25, for a ratio of 20.6:1. That is 1.7 students per teacher below the 22.3:1 average for elementary schools in California. The school's rate of free or reduced-price lunch eligibility is 70%. That rate is above the 54% average among public schools in San Francisco County.
allk12 grades Cobb (William L.) Elementary a C+. The grade compares the school only with California public elementary schools, because each state gives its own test.
On a poverty-adjusted basis, Cobb (William L.) Elementary falls in the middle 80% of California schools: 38.3% actual against 38.4% predicted.
Cobb (William L.) Elementary is located in San Francisco County, where the median household income is $140,970, 60% of adults hold a bachelor's degree or higher, and about 6% of residents live below the federal poverty line. Cobb (William L.) Elementary is one of 132 public schools in the county.
The nearest public school is KIPP San Francisco Bay Academy, at about 0.3 miles. Inside a five-mile radius, there are at least 8 other public schools. Nearby schools with test data average 40.3% proficiency; Cobb (William L.) Elementary posts 38.3%.
In the federal locale system, Cobb (William L.) Elementary is coded City: Large, for schools inside a principal city with a population of 250,000 or more.
Over 4 years, Cobb (William L.) Elementary's enrollment dropped 5%, to 134. The student-to-teacher ratio rose from 17.6:1 in 2020-21 to 20.6:1 in 2024-25.
Topics for discussion here include school events, clubs, and volunteer needs. Alumni can share how the school prepared them.
San Francisco County at a glance
View full county profilePopulation
830,235
Census ACS
Median income
$140,970
Household, ACS
Bachelor's+
60%
Adults 25+
Poverty rate
6%
Below federal line
Schools in county
132
56,505 students
Quick facts
Related schools
Other schools in San Francisco Unified
- Lowell HighHigh · 2,571 students
- Lincoln (Abraham) HighHigh · 2,074 students
- Washington (George) HighHigh · 2,068 students
- Galileo HighHigh · 1,750 students
- Balboa HighHigh · 1,238 students
- Giannini (A.P.) MiddleMiddle · 1,183 students
Other schools in San Francisco
- Five Keys Independence HS (SF Sheriff's)High · 3,447 students
- Lowell HighHigh · 2,571 students
- Lincoln (Abraham) HighHigh · 2,074 students
- Washington (George) HighHigh · 2,068 students
- Galileo HighHigh · 1,750 students
- Balboa HighHigh · 1,238 students
Nearby schools
- KIPP San Francisco Bay Academy0.3 mi · 267
- Gateway High0.3 mi · 464
- San Francisco Public Montessori0.5 mi · 107
- Creative Arts Charter0.6 mi · 440
- Gateway Middle0.6 mi · 247
- Wallenberg (Raoul) Traditional High0.6 mi · 522
Frequently asked questions
About Cobb (William L.) ElementaryHow large is Cobb (William L.) Elementary?
Cobb (William L.) Elementary enrolls approximately 134 students in grades KG-05.
Is Cobb (William L.) Elementary an elementary, middle, or high school?
Cobb (William L.) Elementary is an elementary school covering grades KG-05.
How many teachers does Cobb (William L.) Elementary have?
Cobb (William L.) Elementary employs 7 FTE teachers, for a student-to-teacher ratio of 20.6:1.
How diverse is Cobb (William L.) Elementary?
Cobb (William L.) Elementary reports a student body of 8% White, 31% Hispanic, 34% Black, 10% Asian, 17% Two or more.
What district is Cobb (William L.) Elementary in?
Cobb (William L.) Elementary is part of San Francisco Unified.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.