Enrollment
911
California · 2024-25 NCES data
Middle school (grades 6-8) · San Francisco, CA
Federal NCES profile for Aptos Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 22/100.
The verdict
Aptos Middle earns 22/100 on the Resource Investment Index, with class sizes larger than 76% of California schools. It is also more racially and ethnically mixed than most California schools.
Aptos Middle has class sizes larger than 76% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Aptos Middle ranks #12 of 14 middle schools in San Francisco, CA.
NCES ID 063441005585 Verify on NCES CCD record →
Enrollment
911
California · 2024-25 NCES data
Teachers (FTE)
37.0
Federal CCD staff survey
Students per teacher
24.6:1
vs 21.5:1 California avg
+14% vs state
Free-lunch eligible
45.4%
vs 55.5% California avg
-18% vs state
How Aptos Middle compares with California and U.S. medians
Larger classes than state median
24.6:1 - 3.1 above the California state median of 21.5:1, indicating larger average class loads than typical schools in the state.
Aptos Middle is a large middle school in San Francisco, California, enrolling 911 students.
Class loads run somewhat heavier than typical: 24.6:1 puts it in the larger third of California schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 45.4% of students eligible for free meals.
Enrollment of 911 puts it in the larger third of California schools by headcount.
Its Resource Investment Index lands in the lower third of 9,998 scored California schools.
Among 931 similarly sized, similarly resourced-need California schools statewide, it ranks #667, in the lower tier once campus size and economic need are matched.
Its student body is led by Asian (45%) and Hispanic or Latino (25%), more mixed than most schools in the state (diversity index 71/100).
Counselor access is stretched at roughly 1687 students per counselor, well above the ASCA-recommended 250:1 ceiling.
17.1% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The surrounding San Francisco Unified spends $23,654 per pupil, 43% above the California average, a better-resourced district than most.
Among San Francisco's middle schools, it stands alongside Giannini (a.P.) Middle (1,183 students): Aptos Middle is smaller than that campus by headcount and runs leaner classes (24.6:1 vs 25.7:1).
San Francisco Unified also operates Lowell High (2,571 students) and Lincoln (Abraham) High (2,074 students) alongside Aptos Middle.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
Aptos Middle on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 24.6:1 | ▲ 14% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 45.4% | ▼ 18% | 55.5% | 51.7% |
| Enrollment | 911 | top 13% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Largest group: Asian at 44.6% of enrollment.
Simpson diversity index - at 70.7, Aptos Middle is more mixed than the California school average of 46.0.
District-wide per-pupil expenditure for San Francisco Unified, which includes Aptos Middle.
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Lowell High | Larger | Lower economic need | Similar S:T ratio |
| Lincoln (Abraham) High | Larger | Similar economic need | Similar S:T ratio |
| Washington (George) High | Larger | Similar economic need | Similar S:T ratio |
| Galileo High | Larger | Similar economic need | Lower S:T ratio |
| Balboa High | Larger | Higher economic need | Lower S:T ratio |
Comparisons are relative to Aptos Middle's own figures; each column derives from NCES Common Core of Data.
6 comparable middle schools (grades 6-8) serving the same city.
Matched by enrollment size and by staffing ratio across all of California, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Aptos Middle's federal record.
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Aptos Middle has 911 students enrolled. It is a middle school in San Francisco, CA.
The student-teacher ratio at Aptos Middle is 24.6:1, which is 14% higher than the California average of 21.5:1 and 57% higher than the national average of 15.7:1.
45.4% of students at Aptos Middle are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Aptos Middle is Asian at 44.6% of enrollment, in San Francisco, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 70.7/100.
Aptos Middle has a Resource Investment Index of 22/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Aptos Middle ranks #12 of 14 middle schools in San Francisco, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in San Francisco on the city page.
Aptos Middle earns 22/100 on the Resource Investment Index, with class sizes larger than 76% of California schools. It is also more racially and ethnically mixed than most California schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
Besides Aptos Middle, San Francisco Unified also operates Lowell High (2,571 students), Lincoln (Abraham) High (2,074 students), and Washington (George) High (2,068 students). See the San Francisco Unified district page for the complete list.
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.
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PlainSchools, “Aptos Middle, San Francisco CA.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/aptos-middle-ca
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