Enrollment
880
California · 2024-25 NCES data
High school (grades 9-12) · Sonora, CA
Sonora High
Federal NCES profile for Sonora High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 33/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 063726006306
👥 S:T ratio 7
📚 AP courses 45
🌟 Gifted program 70
🎓 Counselors 41
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Sonora High earns 33/100 on the Resource Investment Index, with class sizes near the California median.
- #2 of 3
- high schools in Sonora · Resource Index
- 33
- Resource Index · Typical
- 23.2:1
- students per teacher
- 35.1%
- free-lunch eligible
Sonora High has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Sonora High ranks #2 of 3 high schools in Sonora, CA.
School address
District: Sonora Union High · California
NCES ID 063726006306 Verify on NCES CCD record →
Teachers (FTE)
38.0
Federal CCD staff survey
Students per teacher
23.2:1
vs 21.5:1 California avg
+8% vs state
Free-lunch eligible
35.1%
vs 55.5% California avg
-37% vs state
Student-teacher ratio in context
How Sonora High compares with California and U.S. medians
What stands out at Sonora High
Sonora High is a large high school in Sonora, California, enrolling 880 students.
Class loads run somewhat heavier than typical: 23.2:1 puts it in the larger third of California schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 35.1% of students eligible for free meals.
Enrollment of 880 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 1,034 statewide peers matched on enrollment and economic need, it ranks mid-pack at #519.
Its student body is led by White (62%) and Hispanic or Latino (24%) (diversity index 55/100).
On the academic-pipeline side it reports 9 Advanced Placement courses.
Counselor coverage runs a bit thin, about 293 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 59.1% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The federal civil-rights collection also records 4 expulsions at this campus for 2021-22.
Among Sonora's high schools, it stands alongside Theodore Bird High (65 students): Sonora High is larger than that campus by headcount and runs heavier classes (23.2:1 vs 21.7:1).
Sonora Union High also operates Theodore Bird High (65 students) and Dario Cassina High (44 students) alongside Sonora High.
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 Sonora High compares
Sonora High on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 23.2:1 | ▲ 8% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 35.1% | ▼ 37% | 55.5% | 51.7% |
| Enrollment | 880 | top 14% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
23.2:1
Leaner classes than 8% of US schools, heavier class loads than most.
880
Bigger than 88% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
35.1%
free-lunch eligible
- 37% 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
23.2:1
students per teacher
- 8% above state mean
Top 64% in California - lower ratio than 36% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
59.1%
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
$14,368
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
Counselors3.0 FTE
Per 293 students, the combined health-and-guidance staffing load for this school.
Discipline context
3
in-school suspensions + 147 out-of-school
Suspension rate: 0.3 per 100 students. Combined in-school and out-of-school rate: 17.0 per 100 students. Reported via the Civil Rights Data Collection. Includes 4 expulsions.
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 61.9%
Hispanic or Latino 23.5%
Two or More 9.7%
Asian 2.1%
American Indian / Alaska Native 1.7%
African American 1.0%
Native Hawaiian / Pacific Islander 0.1%
Largest group: White at 61.9% of enrollment.
Student-body diversity index 55.1/100
Simpson diversity index - at 55.1, Sonora High is more mixed than the California school average of 46.0.
Programs
AP courses offered 9
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Sonora Union High, which includes Sonora High.
$14,368
Per student
-13%
vs California
Avg $16,509
-13%
vs U.S.
Avg $16,593
Revenue mix
Local 68.9%
State 20.6%
Federal 10.6%
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 Sonora High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Theodore Bird High | Smaller | Higher economic need | Lower S:T ratio |
| Dario Cassina High | Smaller | Higher economic need | Lower S:T ratio |
Comparisons are relative to Sonora High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 65
- Students per teacher
- 21.7:1
- Resource Index
- 22/100
- Enrollment
- 44
- Students per teacher
- 14.7:1
- Resource Index
- 54/100
Similar high schools in Sonora
2 comparable high schools (grades 9-12) serving the same city.
Similar high 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 (~880 students)
Similar student-teacher ratio (~23.2:1)
Next steps
Verify locally before acting on Sonora High's federal record.
- Compare Sonora High against another school. Compare schools
- Sonora Union 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 Sonora High
How many students attend Sonora High?
Sonora High has 880 students enrolled. It is a high school in Sonora, CA.
What is the student-teacher ratio at Sonora High?
The student-teacher ratio at Sonora High is 23.2:1, which is 8% higher than the California average of 21.5:1 and 48% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Sonora High?
35.1% of students at Sonora High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Sonora High?
The largest demographic group at Sonora High is White at 61.9% of enrollment, in Sonora, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 55.1/100.
What is the Resource Investment Index for Sonora High?
Sonora High has a Resource Investment Index of 33/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Sonora High rank among high schools in Sonora?
By Resource Investment Index, Sonora High ranks #2 of 3 high schools in Sonora, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Sonora on the city page.
Is Sonora High a good school?
Sonora High earns 33/100 on the Resource Investment Index, with class sizes near the California median. 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 Sonora Union High?
Besides Sonora High, Sonora Union High also operates Theodore Bird High (65 students) and Dario Cassina High (44 students). See the Sonora Union 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.