Enrollment
201
California · 2024-25 NCES data
High school (grades 9-12) · San Bruno, CA
Federal NCES profile for Five Keys Charter (Sf Sheriff's), including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 21/100.
The verdict
Five Keys Charter (Sf Sheriff's) earns 21/100 on the Resource Investment Index, with class sizes larger than 99% of California schools.
Five Keys Charter (Sf Sheriff's) has class sizes larger than 99% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Five Keys Charter (Sf Sheriff's) ranks #6 of 10 public schools in San Bruno, CA.
NCES ID 060199811407 Verify on NCES CCD record →
Enrollment
201
California · 2024-25 NCES data
Teachers (FTE)
5.0
Federal CCD staff survey
Students per teacher
40.2:1
vs 21.5:1 California avg
+87% vs state
Free-lunch eligible
28.9%
vs 55.5% California avg
-48% vs state
How Five Keys Charter (Sf Sheriff's) compares with California and U.S. medians
Five Keys Charter (Sf Sheriff's) is a mid-sized charter high school in San Bruno, California, enrolling 201 students.
Class loads run heavy: 40.2:1 is larger than about 99% of California schools and 87% above the 21.5:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat below the state's typical profile, with 28.9% of students eligible for free meals.
Enrollment of 201 puts it in the smaller third of California schools by headcount.
Its Resource Investment Index lands in the lower third of 9,998 scored California schools.
Among 279 similarly sized, similarly resourced-need California schools statewide, it ranks #233, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (77%) and African American (9%) (diversity index 39/100).
No Advanced Placement courses are reported for this campus in the federal data.
Counselor coverage runs a bit thin, about 287 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
The surrounding Five Keys Charter (Sf Sheriff's) District spends $20,425 per pupil, 24% above the California average, a better-resourced district than most.
Among San Bruno's high schools, it stands alongside Capuchino High (1,061 students): Five Keys Charter (Sf Sheriff's) is smaller than that campus by headcount and runs heavier classes (40.2:1 vs 17.4:1).
Five Keys Charter (Sf Sheriff's) District is a single-school charter district, so Five Keys Charter (Sf Sheriff's) operates independently rather than alongside district-mates.
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
Five Keys Charter (Sf Sheriff's) on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 40.2:1 | ▲ 87% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 28.9% | ▼ 48% | 55.5% | 51.7% |
| Enrollment | 201 | top 83% | - | - |
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: Hispanic or Latino at 77.4% of enrollment.
Simpson diversity index - at 38.6, Five Keys Charter (Sf Sheriff's) is less mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Five Keys Charter (Sf Sheriff's) District, which includes Five Keys Charter (Sf Sheriff's).
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.
1 comparable high schools (grades 9-12) 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 Five Keys Charter (Sf Sheriff's)'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.
Five Keys Charter (Sf Sheriff's) has 201 students enrolled. It is a high school in San Bruno, CA.
The student-teacher ratio at Five Keys Charter (Sf Sheriff's) is 40.2:1, which is 87% higher than the California average of 21.5:1 and 156% higher than the national average of 15.7:1.
28.9% of students at Five Keys Charter (Sf Sheriff's) are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Five Keys Charter (Sf Sheriff's) is Hispanic or Latino at 77.4% of enrollment, in San Bruno, CA.
Five Keys Charter (Sf Sheriff's) has a Resource Investment Index of 21/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Five Keys Charter (Sf Sheriff's) ranks #6 of 10 public schools in San Bruno, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in San Bruno on the city page.
Five Keys Charter (Sf Sheriff's) earns 21/100 on the Resource Investment Index, with class sizes larger than 99% of 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.
None; Five Keys Charter (Sf Sheriff's) District is a single-school charter district, and Five Keys Charter (Sf Sheriff's) is its only campus.
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.