Enrollment
903
California · 2024-25 NCES data
Middle school (grades 6-8) · San Mateo, CA
Federal NCES profile for Borel Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 47/100.
The verdict
Borel Middle earns 47/100 on the Resource Investment Index, with class sizes smaller than 78% of California schools.
Borel Middle has class sizes smaller than 78% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Borel Middle ranks #3 of 22 public schools in San Mateo, CA.
NCES ID 063492005901 Verify on NCES CCD record →
Enrollment
903
California · 2024-25 NCES data
Teachers (FTE)
50.0
Federal CCD staff survey
Students per teacher
18.1:1
vs 21.5:1 California avg
-16% vs state
Free-lunch eligible
29.4%
vs 55.5% California avg
-47% vs state
How Borel Middle compares with California and U.S. medians
Smaller classes than state median
18.1:1 - 3.4 below the California state median of 21.5:1, indicating smaller average class loads than typical schools in the state.
Borel Middle is a large middle school in San Mateo, California, enrolling 903 students.
Class sizes run a bit leaner than typical: 18.1:1 puts it in the smaller third of California schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 29.4% of students eligible for free meals.
Enrollment of 903 puts it in the larger third of California schools by headcount.
Its Resource Investment Index lands in the upper third of 9,998 scored California schools.
Among 1,018 similarly sized, similarly resourced-need California schools statewide, it ranks #60, a top-tier result once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (54%) and White (19%) (diversity index 64/100).
Counselor coverage runs a bit thin, about 301 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Attendance runs somewhat below the norm, with 20.5% of students chronically absent per the 2021-22 civil-rights collection.
Among San Mateo's middle schools, it stands alongside Abbott Middle (721 students): Borel Middle is larger than that campus by headcount and runs heavier classes (18.1:1 vs 16.4:1).
San Mateo-Foster City also operates Bowditch Middle (929 students) and Bayside Academy (840 students) alongside Borel 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
Borel 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 | 18.1:1 | ▼ 16% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 29.4% | ▼ 47% | 55.5% | 51.7% |
| Enrollment | 903 | top 14% | - | - |
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 54.3% of enrollment.
Simpson diversity index - at 63.7, Borel Middle is more mixed than the California school average of 46.0.
District-wide per-pupil expenditure for San Mateo-Foster City, which includes Borel 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 |
|---|---|---|---|
| Bowditch Middle | Similar size | Lower economic need | Higher S:T ratio |
| Bayside Academy | Similar size | Similar economic need | Similar S:T ratio |
| Abbott Middle | Similar size | Higher economic need | Lower S:T ratio |
| Foster City Elementary | Smaller | Lower economic need | Similar S:T ratio |
| Baywood Elementary | Smaller | Lower economic need | Higher S:T ratio |
Comparisons are relative to Borel Middle's own figures; each column derives from NCES Common Core of Data.
1 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 Borel 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.
Borel Middle has 903 students enrolled. It is a middle school in San Mateo, CA.
The student-teacher ratio at Borel Middle is 18.1:1, which is 16% lower than the California average of 21.5:1 and 15% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
29.4% of students at Borel Middle are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Borel Middle is Hispanic or Latino at 54.3% of enrollment, in San Mateo, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 63.7/100.
Borel Middle has a Resource Investment Index of 47/100 (typical 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, Borel Middle ranks #3 of 22 public schools in San Mateo, 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 Mateo on the city page.
Borel Middle earns 47/100 on the Resource Investment Index, with class sizes smaller than 78% 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.
Besides Borel Middle, San Mateo-Foster City also operates Bowditch Middle (929 students), Bayside Academy (840 students), and Abbott Middle (721 students). See the San Mateo-Foster City 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, “Borel Middle, San Mateo 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/borel-middle-ca
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