Enrollment
256
California · 2024-25 NCES data
Elementary school (grades K-5) · Sebastopol, CA
Sunridge Charter
Federal NCES profile for Sunridge Charter, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 20/100.
2024-25 NCES dataElementary school (grades K-5)NCES 064023010687Charter school
👥 S:T ratio 0
🌟 Gifted program 30
📋 Attendance 29
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Sunridge Charter earns 20/100 on the Resource Investment Index, with class sizes larger than 83% of California schools.
- #8 of 9
- elementary schools in Sebastopol · Resource Index
- 20
- Resource Index · Lower
- 25.6:1
- large classes for California
- 34.2%
- free-lunch eligible
Sunridge Charter has class sizes larger than 83% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Sunridge Charter ranks #8 of 9 elementary schools in Sebastopol, CA.
School address
District: Twin Hills Union Elementary · California
NCES ID 064023010687 Verify on NCES CCD record →
Teachers (FTE)
10.0
Federal CCD staff survey
Students per teacher
25.6:1
vs 21.5:1 California avg
+19% vs state
Free-lunch eligible
34.2%
vs 55.5% California avg
-38% vs state
Student-teacher ratio in context
How Sunridge Charter compares with California and U.S. medians
What stands out at Sunridge Charter
Sunridge Charter is a mid-sized charter elementary school in Sebastopol, California, enrolling 256 students.
Class loads run somewhat heavier than typical: 25.6:1 puts it in the larger third of California schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 34.2% of students eligible for free meals.
Enrollment of 256 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 500 similarly sized, similarly resourced-need California schools statewide, it ranks #433, in the lower tier once campus size and economic need are matched.
Its student body is led by White (76%) and Hispanic or Latino (14%) (diversity index 39/100).
Chronic absenteeism is elevated: 28.5% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Sebastopol's elementary schools, it stands alongside Gravenstein Elementary (464 students): Sunridge Charter is smaller than that campus by headcount and runs heavier classes (25.6:1 vs 19.3:1).
Twin Hills Union Elementary also operates Apple Blossom (305 students) and Orchard View (224 students) alongside Sunridge Charter.
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 Sunridge Charter compares
Sunridge Charter on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 25.6:1 | ▲ 19% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 34.2% | ▼ 38% | 55.5% | 51.7% |
| Enrollment | 256 | top 78% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
25.6:1
Leaner classes than 4% of US schools, heavier class loads than most.
256
Bigger than 26% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
34.2%
free-lunch eligible
- 38% 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
25.6:1
students per teacher
- 19% above state mean
Top 83% in California - lower ratio than 17% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
28.5%
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
$14,548
per pupil, district-wide
- below California avg of $16,509
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
3
in-school suspensions + 1 out-of-school
Suspension rate: 1.2 per 100 students. Combined in-school and out-of-school rate: 1.6 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
White 76.4%
Hispanic or Latino 13.8%
Two or More 9.1%
African American 0.4%
Asian 0.4%
Largest group: White at 76.4% of enrollment.
Student-body diversity index 38.9/100
Simpson diversity index - at 38.9, Sunridge Charter is less mixed than the California school average of 46.0.
Programs
Funding & spending
District-wide per-pupil expenditure for Twin Hills Union Elementary, which includes Sunridge Charter.
$14,548
Per student
-12%
vs California
Avg $16,509
-12%
vs U.S.
Avg $16,593
Revenue mix
Local 43.1%
State 53.5%
Federal 3.3%
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 Sunridge Charter Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Apple Blossom | Similar size | Lower economic need | Lower S:T ratio |
| Orchard View | Similar size | Lower economic need | Lower S:T ratio |
| Twin Hills Charter Middle | Similar size | Similar economic need | Lower S:T ratio |
Comparisons are relative to Sunridge Charter's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 305
- Students per teacher
- 21.8:1
- Resource Index
- 14/100
- Enrollment
- 224
- Students per teacher
- 17.2:1
- Resource Index
- 31/100
- Enrollment
- 207
- Students per teacher
- 17.3:1
- Resource Index
- 40/100
Similar elementary schools in Sebastopol
6 comparable elementary schools (grades K-5) serving the same city.
Gravenstein Elementary
Standard public school
464 students 19.3:1 students per teacher
Apple Blossom
Standard public school
305 students 21.8:1 students per teacher
Sebastopol Independent Charter
Standard public school
286 students 20.4:1 students per teacher
Park Side Elementary
Standard public school
268 students 24.4:1 students per teacher
Brook Haven Middle
Standard public school
212 students 19.3:1 students per teacher
Oak Grove Elementary
Standard public school
91 students 22.8:1 students per teacher
Similar elementary 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 (~256 students)
Similar student-teacher ratio (~25.6:1)
Next steps
Verify locally before acting on Sunridge Charter's federal record.
- Compare Sunridge Charter against another school. Compare schools
- Twin Hills Union Elementary'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 Sunridge Charter
How many students attend Sunridge Charter?
Sunridge Charter has 256 students enrolled. It is an elementary school in Sebastopol, CA.
What is the student-teacher ratio at Sunridge Charter?
The student-teacher ratio at Sunridge Charter is 25.6:1, which is 19% higher than the California average of 21.5:1 and 63% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Sunridge Charter?
34.2% of students at Sunridge Charter are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Sunridge Charter?
The largest demographic group at Sunridge Charter is White at 76.4% of enrollment, in Sebastopol, CA.
What is the Resource Investment Index for Sunridge Charter?
Sunridge Charter has a Resource Investment Index of 20/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Sunridge Charter rank among elementary schools in Sebastopol?
By Resource Investment Index, Sunridge Charter ranks #8 of 9 elementary schools in Sebastopol, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Sebastopol on the city page.
Is Sunridge Charter a good school?
Sunridge Charter earns 20/100 on the Resource Investment Index, with class sizes larger 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 Twin Hills Union Elementary?
Besides Sunridge Charter, Twin Hills Union Elementary also operates Apple Blossom (305 students), Orchard View (224 students), and Twin Hills Charter Middle (207 students). See the Twin Hills Union Elementary 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.