- Enrollment
- 1,071
- Students per teacher
- 20.6:1
- Resource Index
- 36/100
Middle school (grades 6-8) · Sonoma, CA
Adele Harrison Middle
Federal NCES profile for Adele Harrison Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 30/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 063720010436
👥 S:T ratio 22
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 28
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Adele Harrison Middle earns 30/100 on the Resource Investment Index, with class sizes near the California median.
- #4 of 10
- public schools in Sonoma · Resource Index
- 30
- Resource Index · Lower
- 19.6:1
- students per teacher
- 34.0%
- free-lunch eligible
Adele Harrison Middle has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Adele Harrison Middle ranks #4 of 10 public schools in Sonoma, CA.
School address
District: Sonoma Valley Unified · California
NCES ID 063720010436 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-5 students YoY
Adele Harrison Middle held near 330 students from 2022-23 to 2023-24 (-5 headcount).
Teacher FTE added 18.0 → 19.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-5 students YoY 063720010436 · Sonoma, CA Middle · SMALL · TRAD
334 enr · 19.6:1 · 34.0% lunch · RII 30
Nearest enrollment peer: Sonoma Valley High (1,071 students)
Adele Harrison Middle held near 330 students from 2022-23 to 2023-24 (-5 headcount). Teacher FTE added 18.0 → 19.0 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Adele Harrison Middle in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Sonoma Valley
Sonoma Valley High
1,071 students
- Flowery Elemen 368
Flowery Elementary
368 students
- This school 334
Adele Harrison Middle
334 students
- Altimira Middl 324
Altimira Middle
324 students
- El Verano Elem 314
El Verano Elementary
314 students
- Sassarini Elem 281
Sassarini Elementary
281 students
What this shows Adele Harrison Middle reports 334 students on the CCD universe file.
How Adele Harrison Middle compares
Adele Harrison Middle held steady on CCD headcount: ratios and free-lunch share vs California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 19.6:1 | ▼ 9% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 34.0% | ▼ 39% | 55.5% | 51.7% |
| Enrollment | 334 | top 70% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
19.6:1
Leaner classes than 17% of US schools, heavier class loads than most.
334
Bigger than 37% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
34.0%
free-lunch eligible
- 39% below the California average of 55.5%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
19.6:1
students per teacher
- 9% below state mean
Top 32% in California - lower ratio than 68% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
29.0%
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
$23,762
per pupil, district-wide
- above California avg of $18,665
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors0.2 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 31 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 9.3 per 100 students. Reported via the Civil Rights Data Collection. Includes 1 expulsion.
Student demographics
Hispanic or Latino 56.3%
White 40.4%
Asian 1.5%
Two or More 1.2%
American Indian / Alaska Native 0.3%
Native Hawaiian / Pacific Islander 0.3%
Largest group: Hispanic or Latino at 56.3% of enrollment.
Student-body diversity index 51.9/100
Simpson diversity index - at 51.9, Adele Harrison Middle is more mixed than the California school average of 46.0.
Programs
Gifted & talented Yes
District finance for Sonoma Valley Unified reports $23,762 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Adele Harrison Middle Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Sonoma Valley High | Larger | Similar economic need | Similar S:T ratio |
| Flowery Elementary | Similar size | Similar economic need | Higher S:T ratio |
| Altimira Middle | Similar size | Higher economic need | Lower S:T ratio |
| El Verano Elementary | Similar size | Higher economic need | Higher S:T ratio |
| Sassarini Elementary | Similar size | Higher economic need | Higher S:T ratio |
Comparisons are relative to Adele Harrison Middle's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 368
- Students per teacher
- 24.5:1
- Resource Index
- 11/100
- Enrollment
- 324
- Students per teacher
- 15.4:1
- Resource Index
- 45/100
- Enrollment
- 314
- Students per teacher
- 26.2:1
- Resource Index
- 7/100
- Enrollment
- 281
- Students per teacher
- 21.6:1
- Resource Index
- 19/100
Similar middle schools in Sonoma
1 comparable middle schools (grades 6-8) serving the same city.
Nationwide middle schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~334 students)
Similar student-teacher ratio (~19.6:1)
Frequently asked questions about Adele Harrison Middle
How many students attend Adele Harrison Middle?
Adele Harrison Middle has 334 students enrolled. It is a middle school in Sonoma, CA. CCD year-over-year: 335 (2022-23) → 330 (2023-24), nearly flat (-5).
What is the student-teacher ratio at Adele Harrison Middle?
The student-teacher ratio at Adele Harrison Middle is 19.6:1, which is 9% lower than the California average of 21.5:1 and 25% 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 Adele Harrison Middle?
34.0% of students at Adele Harrison Middle are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Adele Harrison Middle?
The largest demographic group at Adele Harrison Middle is Hispanic or Latino at 56.3% of enrollment, in Sonoma, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 51.9/100.
What is the Resource Investment Index for Adele Harrison Middle?
Adele Harrison Middle has a Resource Investment Index of 30/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Adele Harrison Middle rank among public schools in Sonoma?
By Resource Investment Index, Adele Harrison Middle ranks #4 of 10 public schools in Sonoma, 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 Sonoma on the city page.
What other schools are in Sonoma Valley Unified?
Besides Adele Harrison Middle, Sonoma Valley Unified also operates Sonoma Valley High (1,071 students), Flowery Elementary (368 students), and Altimira Middle (324 students). See the Sonoma Valley Unified district page for the complete list.