Enrollment
721
California · 2024-25 NCES data
Middle school (grades 6-8) · San Mateo, CA
Abbott Middle
Federal NCES profile for Abbott Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 33/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 063492005896
👥 S:T ratio 34
🌟 Gifted program 30
🎓 Counselors 52
📋 Attendance 17
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Abbott Middle earns 33/100 on the Resource Investment Index, with class sizes smaller than 86% of California schools.
- #15 of 22
- public schools in San Mateo · Resource Index
- 33
- Resource Index · Typical
- 16.4:1
- small classes for California
- 41.3%
- free-lunch eligible
Abbott Middle has class sizes smaller than 86% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Abbott Middle ranks #15 of 22 public schools in San Mateo, CA.
School address
District: San Mateo-Foster City · California
NCES ID 063492005896 Verify on NCES CCD record →
Teachers (FTE)
44.0
Federal CCD staff survey
Students per teacher
16.4:1
vs 21.5:1 California avg
-24% vs state
Free-lunch eligible
41.3%
vs 55.5% California avg
-26% vs state
Student-teacher ratio in context
How Abbott Middle compares with California and U.S. medians
What stands out at Abbott Middle
Abbott Middle is a mid-sized middle school in San Mateo, California, enrolling 721 students.
Classes run notably small here: at 16.4:1, Abbott Middle is leaner than roughly 86% of California schools and 24% under the state's 21.5:1 norm, more adult attention per pupil than most peers.
Economic need runs somewhat below the state's typical profile, with 41.3% of students eligible for free meals.
Enrollment of 721 puts it in the larger third of California schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 9,998 scored California schools.
Against 1,271 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #421.
Its student body is led by Hispanic or Latino (62%) and White (15%) (diversity index 57/100).
Counselor coverage is strong, about 240 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 33.3% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among San Mateo's middle schools, it stands alongside Borel Middle (903 students): Abbott Middle is smaller than that campus by headcount and runs leaner classes (16.4:1 vs 18.1:1).
San Mateo-Foster City also operates Bowditch Middle (929 students) and Borel Middle (903 students) alongside Abbott 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
How Abbott Middle compares
Abbott 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 | 16.4:1 | ▼ 24% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 41.3% | ▼ 26% | 55.5% | 51.7% |
| Enrollment | 721 | top 22% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.4:1
Leaner classes than 35% of US schools, a middle-of-the-pack class size.
721
Bigger than 81% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
41.3%
free-lunch eligible
- 26% below the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
16.4:1
students per teacher
- 24% below state mean
Top 14% in California - lower ratio than 86% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
33.3%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$17,395
per pupil, district-wide
- above California avg of $16,509
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors3.0 FTE
Per 240 students, the combined health-and-guidance staffing load for this school.
Discipline context
15
in-school suspensions + 17 out-of-school
Suspension rate: 2.1 per 100 students. Combined in-school and out-of-school rate: 4.4 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
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.
Student demographics
Hispanic or Latino 62.1%
White 14.7%
Asian 10.5%
Two or More 9.8%
Native Hawaiian / Pacific Islander 1.8%
African American 0.8%
American Indian / Alaska Native 0.1%
Largest group: Hispanic or Latino at 62.1% of enrollment.
Student-body diversity index 57.2/100
Simpson diversity index - at 57.2, Abbott Middle is more mixed than the California school average of 46.0.
Programs
Funding & spending
District-wide per-pupil expenditure for San Mateo-Foster City, which includes Abbott Middle.
$17,395
Per student
+5%
vs California
Avg $16,509
+5%
vs U.S.
Avg $16,593
Revenue mix
Local 79.9%
State 14.6%
Federal 5.4%
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.
How Abbott Middle Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Bowditch Middle | Larger | Lower economic need | Higher S:T ratio |
| Borel Middle | Larger | Lower economic need | Higher S:T ratio |
| Bayside Academy | Similar size | Similar economic need | Higher S:T ratio |
| Foster City Elementary | Similar size | Lower economic need | Higher S:T ratio |
| Baywood Elementary | Smaller | Lower economic need | Higher S:T ratio |
Comparisons are relative to Abbott Middle's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 929
- Students per teacher
- 20.2:1
- Resource Index
- 51/100
- Enrollment
- 903
- Students per teacher
- 18.1:1
- Resource Index
- 47/100
- Enrollment
- 840
- Students per teacher
- 19.1:1
- Resource Index
- 43/100
- Enrollment
- 624
- Students per teacher
- 18.9:1
- Resource Index
- 33/100
- Enrollment
- 489
- Students per teacher
- 21.3:1
- Resource Index
- 36/100
Similar middle schools in San Mateo
1 comparable middle schools (grades 6-8) serving the same city.
Similar middle schools statewide
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.
Similar enrollment (~721 students)
Similar student-teacher ratio (~16.4:1)
Next steps
Verify locally before acting on Abbott Middle's federal record.
- Compare Abbott Middle against another school. Compare schools
- San Mateo-Foster City's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
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.
Frequently asked questions about Abbott Middle
How many students attend Abbott Middle?
Abbott Middle has 721 students enrolled. It is a middle school in San Mateo, CA.
What is the student-teacher ratio at Abbott Middle?
The student-teacher ratio at Abbott Middle is 16.4:1, which is 24% lower than the California average of 21.5:1 and 4% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Abbott Middle?
41.3% of students at Abbott Middle are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Abbott Middle?
The largest demographic group at Abbott Middle is Hispanic or Latino at 62.1% of enrollment, in San Mateo, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 57.2/100.
What is the Resource Investment Index for Abbott Middle?
Abbott Middle has a Resource Investment Index of 33/100 (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).
How does Abbott Middle rank among public schools in San Mateo?
By Resource Investment Index, Abbott Middle ranks #15 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.
Is Abbott Middle a good school?
Abbott Middle earns 33/100 on the Resource Investment Index, with class sizes smaller than 86% 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.
What other schools are in San Mateo-Foster City?
Besides Abbott Middle, San Mateo-Foster City also operates Bowditch Middle (929 students), Borel Middle (903 students), and Bayside Academy (840 students). See the San Mateo-Foster City district page for the complete list.
Related tools
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.