Enrollment
12
California · 2024-25 NCES data
Other / mixed grade configuration · Williams, CA
Coastal Buttes Academy
Federal NCES profile for Coastal Buttes Academy, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 27/100.
2024-25 NCES dataOther / mixed grade configurationNCES 069100407910
👥 S:T ratio 52
🌟 Gifted program 30
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Coastal Buttes Academy earns 27/100 on the Resource Investment Index, even as it posts class sizes smaller than 94% of California schools. It is also one of the smallest schools in California.
- #1 of 3
- schools in Williams · Resource Index
- 27
- Resource Index · Lower
- 12:1
- small classes for California
- 78.6%
- free-lunch eligible
Coastal Buttes Academy has class sizes smaller than 94% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Coastal Buttes Academy ranks #1 of 3 schools in Williams, CA.
School address
District: Colusa County Office of Education · California
NCES ID 069100407910 Verify on NCES CCD record →
Teachers (FTE)
1.0
Federal CCD staff survey
Students per teacher
12:1
vs 21.5:1 California avg
-44% vs state
Free-lunch eligible
78.6%
vs 55.5% California avg
+42% vs state
Student-teacher ratio in context
How Coastal Buttes Academy compares with California and U.S. medians
What stands out at Coastal Buttes Academy
Coastal Buttes Academy is a high-poverty, small combined-grade school in Williams, California, enrolling 12 students.
Classes run notably small here: at 12:1, Coastal Buttes Academy is leaner than roughly 94% of California schools and 44% under the state's 21.5:1 norm, more adult attention per pupil than most peers.
Economic need runs somewhat above the state's typical profile, with 78.6% of students eligible for free meals.
This is a small campus: fewer students than 98% of California schools, with 12 enrolled.
Its Resource Investment Index sits near the middle of the pack among 9,998 scored California schools.
Among 64 similarly sized, similarly resourced-need California schools statewide, it ranks #56, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (75%) and White (8%) (diversity index 42/100).
Chronic absenteeism is elevated: 66.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 21.3% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Discipline events run high: 6 in- and out-of-school suspensions were reported for 12 students in the 2021-22 Civil Rights Data Collection.
Among Williams's public schools, it stands alongside Williams Junior/Senior High (588 students): Coastal Buttes Academy is smaller than that campus by headcount and runs leaner classes (12:1 vs 21.8:1).
Its district, Colusa County Office of Education, also runs S. William Abel Academy (43 students).
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 Coastal Buttes Academy compares
Coastal Buttes Academy on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12:1 | ▼ 44% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 78.6% | ▲ 42% | 55.5% | 51.7% |
| Enrollment | 12 | top 98% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12:1
Leaner classes than 75% of US schools, among the more generously staffed nationally.
12
Bigger than 2% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Economic need
78.6%
free-lunch eligible
- 42% above the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
12:1
students per teacher
- 44% below state mean
Top 6% in California - lower ratio than 94% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
66.7%
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
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 6 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 50.0 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 75.0%
White 8.3%
American Indian / Alaska Native 8.3%
Two or More 8.3%
Largest group: Hispanic or Latino at 75.0% of enrollment.
Student-body diversity index 41.7/100
Simpson diversity index - at 41.7, Coastal Buttes Academy is less mixed than the California school average of 46.0.
Programs
How Coastal Buttes Academy Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| S. William Abel Academy | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to Coastal Buttes Academy's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 43
- Students per teacher
- 43:1
- Resource Index
- 20/100
Similar other schools in Williams
2 comparable other schools (grades Mixed) serving the same city.
Similar other 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 (~12 students)
Next steps
Verify locally before acting on Coastal Buttes Academy's federal record.
- Compare Coastal Buttes Academy against another school. Compare schools
- Colusa County Office of Education'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 Coastal Buttes Academy
How many students attend Coastal Buttes Academy?
Coastal Buttes Academy has 12 students enrolled. It is a special-education school in Williams, CA.
What is the student-teacher ratio at Coastal Buttes Academy?
The student-teacher ratio at Coastal Buttes Academy is 12:1, which is 44% lower than the California average of 21.5:1 and 24% lower 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 Coastal Buttes Academy?
78.6% of students at Coastal Buttes Academy are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Coastal Buttes Academy?
The largest demographic group at Coastal Buttes Academy is Hispanic or Latino at 75.0% of enrollment, in Williams, CA.
What is the Resource Investment Index for Coastal Buttes Academy?
Coastal Buttes Academy has a Resource Investment Index of 27/100 (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 Coastal Buttes Academy rank among schools in Williams?
By Resource Investment Index, Coastal Buttes Academy ranks #1 of 3 schools in Williams, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Williams on the city page.
Is Coastal Buttes Academy a good school?
Coastal Buttes Academy earns 27/100 on the Resource Investment Index, even as it posts class sizes smaller than 94% of California schools. It is also one of the smallest schools in California. 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 Colusa County Office of Education?
Besides Coastal Buttes Academy, Colusa County Office of Education also operates S. William Abel Academy (43 students). See the Colusa County Office of Education 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.