Enrollment
577
California · 2024-25 NCES data
Middle school (grades 6-8) · Santa Rosa, CA
Herbert Slater Middle
Federal NCES profile for Herbert Slater Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 45/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 063583006121
👥 S:T ratio 32
🌟 Gifted program 70
🎓 Counselors 57
📋 Attendance 22
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Herbert Slater Middle earns 45/100 on the Resource Investment Index, with class sizes smaller than 83% of California schools.
- #1 of 5
- middle schools in Santa Rosa · Resource Index
- 45
- Resource Index · Typical
- 17:1
- small classes for California
- 44.8%
- free-lunch eligible
Herbert Slater Middle has class sizes smaller than 83% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Herbert Slater Middle ranks #1 of 5 middle schools in Santa Rosa, CA.
School address
District: Santa Rosa High · California
NCES ID 063583006121 Verify on NCES CCD record →
Teachers (FTE)
34.0
Federal CCD staff survey
Students per teacher
17:1
vs 21.5:1 California avg
-21% vs state
Free-lunch eligible
44.8%
vs 55.5% California avg
-19% vs state
Student-teacher ratio in context
How Herbert Slater Middle compares with California and U.S. medians
What stands out at Herbert Slater Middle
Herbert Slater Middle is a mid-sized middle school in Santa Rosa, California, enrolling 577 students.
Class sizes run a bit leaner than typical: 17:1 puts it in the smaller third of California schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 44.8% of students eligible for free meals.
Enrollment of 577 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 1,407 similarly sized, similarly resourced-need California schools statewide, it ranks #71, a top-tier result once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (66%) and White (20%) (diversity index 52/100).
Counselor coverage is strong, about 214 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 31.2% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Santa Rosa's middle schools, it stands alongside Rincon Valley Middle (725 students): Herbert Slater Middle is smaller than that campus by headcount and runs leaner classes (17:1 vs 22.7:1).
Santa Rosa High also operates Maria Carrillo High (1,584 students) and Santa Rosa High (1,553 students) alongside Herbert Slater 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 Herbert Slater Middle compares
Herbert Slater 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 | 17:1 | ▼ 21% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 44.8% | ▼ 19% | 55.5% | 51.7% |
| Enrollment | 577 | top 35% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
17:1
Leaner classes than 30% of US schools, heavier class loads than most.
577
Bigger than 70% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
44.8%
free-lunch eligible
- 19% 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
17:1
students per teacher
- 21% below state mean
Top 17% in California - lower ratio than 83% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
31.2%
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.
Support staff
Counselors2.7 FTE
Per 214 students, the combined health-and-guidance staffing load for this school.
Discipline context
45
in-school suspensions + 46 out-of-school
Suspension rate: 7.8 per 100 students. Combined in-school and out-of-school rate: 15.8 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 65.6%
White 20.3%
Asian 4.5%
Two or More 4.0%
Native Hawaiian / Pacific Islander 2.8%
African American 1.7%
American Indian / Alaska Native 1.0%
Largest group: Hispanic or Latino at 65.6% of enrollment.
Student-body diversity index 52.4/100
Simpson diversity index - at 52.4, Herbert Slater Middle is more mixed than the California school average of 46.0.
Programs
Gifted & talented Yes
How Herbert Slater Middle Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Maria Carrillo High | Larger | Lower economic need | Higher S:T ratio |
| Santa Rosa High | Larger | Lower economic need | Similar S:T ratio |
| Piner High | Larger | Similar economic need | Higher S:T ratio |
| Montgomery High | Larger | Lower economic need | Similar S:T ratio |
| Elsie Allen High | Larger | Similar economic need | Similar S:T ratio |
Comparisons are relative to Herbert Slater Middle's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,584
- Students per teacher
- 23.3:1
- Resource Index
- 43/100
- Enrollment
- 1,553
- Students per teacher
- 17.6:1
- Resource Index
- 41/100
- Enrollment
- 1,434
- Students per teacher
- 21.4:1
- Resource Index
- 39/100
- Enrollment
- 1,253
- Students per teacher
- 16.3:1
- Resource Index
- 44/100
- Enrollment
- 1,029
- Students per teacher
- 17.7:1
- Resource Index
- 40/100
Similar middle schools in Santa Rosa
4 comparable middle schools (grades 6-8) serving the same city.
Rincon Valley Middle
Standard public school
725 students 22.7:1 students per teacher
Santa Rosa Middle
Standard public school
452 students 18.8:1 students per teacher
Hilliard Comstock Middle
Standard public school
423 students 19.2:1 students per teacher
Piner-Olivet Charter
Standard public school
212 students 26.5:1 students per teacher
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 (~577 students)
Similar student-teacher ratio (~17:1)
Next steps
Verify locally before acting on Herbert Slater Middle's federal record.
- Compare Herbert Slater Middle against another school. Compare schools
- Santa Rosa High'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 Herbert Slater Middle
How many students attend Herbert Slater Middle?
Herbert Slater Middle has 577 students enrolled. It is a middle school in Santa Rosa, CA.
What is the student-teacher ratio at Herbert Slater Middle?
The student-teacher ratio at Herbert Slater Middle is 17:1, which is 21% lower than the California average of 21.5:1 and 8% 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 Herbert Slater Middle?
44.8% of students at Herbert Slater Middle are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Herbert Slater Middle?
The largest demographic group at Herbert Slater Middle is Hispanic or Latino at 65.6% of enrollment, in Santa Rosa, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 52.4/100.
What is the Resource Investment Index for Herbert Slater Middle?
Herbert Slater Middle has a Resource Investment Index of 45/100 (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 Herbert Slater Middle rank among middle schools in Santa Rosa?
By Resource Investment Index, Herbert Slater Middle ranks #1 of 5 middle schools in Santa Rosa, 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 Santa Rosa on the city page.
Is Herbert Slater Middle a good school?
Herbert Slater Middle earns 45/100 on the Resource Investment Index, with class sizes smaller than 83% 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 Santa Rosa High?
Besides Herbert Slater Middle, Santa Rosa High also operates Maria Carrillo High (1,584 students), Santa Rosa High (1,553 students), and Piner High (1,434 students). See the Santa Rosa High 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.