Enrollment
880
California · 2024-25 NCES data
2024-25 NCES data High school (grades 9-12) NCES 063726006306
Sonora High — Sonora, CA
Federal NCES profile for Sonora High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 32/100.
👥 Class size 3
📚 AP courses 45
🌟 Gifted program 70
🎓 Counselors 41
📋 Attendance 0
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: Sonora Union High · California
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
38.0
Federal CCD staff survey
Students per teacher
24.2:1
vs 21.6:1 California avg
+12% 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
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Sonora High reports 880 enrolled students to the National Center for Education Statistics (NCES) alongside 38.0 full-time-equivalent teachers, producing a 24.2:1 student-teacher ratio. That figure sits 12% above the California state mean of 21.6:1, signalling larger average class loads than peers in the same state. Against the national 2024-25 average of 15.9:1, it is 52% higher, a useful calibration for families comparing districts across state lines.
Title I and federal lunch eligibility offer another window into the student body: 35.1% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 37% below the California average and 32% below the national baseline. The school offers 9 Advanced Placement courses, a stronger academic pipeline indicator than enrollment alone. Counselor coverage works out to roughly 293 students per counselor, above the ASCA-recommended ceiling of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 59.1% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding Sonora Union High spends $16,028 per pupil district-wide, below the California average of $18,039 and below the national average of $19,490. Revenue comes 68.9% from local sources (property taxes), 20.6% from the state, and 10.6% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 32/100 (F), calculated from 5 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Sonora High compares
Cross-validating school-level NCES values against California state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 24.2:1 | ▲ 12% | 21.6:1 | 15.9:1 |
| Free-lunch eligible | 35.1% | ▼ 37% | 55.5% | 51.8% |
| Enrollment | 880 | top 86% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
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
24.2:1
students per teacher
— 12% above state mean
Top 74% in California — lower ratio than 26% of state schools
Above 20:1 — larger class loads than the typical U.S. public school; staffing is stretched relative to enrollment.
Engagement
59.1%
chronically absent (missed 10%+ of school days)
Chronic absenteeism at or above 20% — the CDC threshold for "high" — signals significant barriers to regular attendance.
Funding equity
$16,028
per pupil, district-wide
— below California avg of $18,039
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
Enrollment 880 Top 86% in California — larger than 14% of 10,006 state schools
Teachers (FTE) 38.0
Students per teacher 24.2:1 +12% vs state
Free-lunch eligible 35.1% -37% vs state
NCES ID 063726006306
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.
Programs & staff
AP courses offered 9
Gifted & talented Yes
Counselors (FTE) 3.0
Students per counselor 293:1
Discipline & special education
Chronically absent 59.1%
In-school suspensions 3
Out-of-school suspensions 147
Expulsions 4
Funding & spending
District-wide per-pupil expenditure for Sonora Union High, which includes Sonora High.
$16,028
Per student
-11%
vs California
Avg $18,039
-18%
vs U.S.
Avg $19,490
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.
Other Schools in This District
- Enrollment
- 65
- Students per teacher
- 34.7:1
- Enrollment
- 44
- Students per teacher
- 21.3:1
Similar high schools in Sonora
2 comparable high schools (grades 9-12) serving the same city.
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
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 24.2:1, which is 12% higher than the California average of 21.6:1 and 52% higher than the national average of 15.9:1.
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%. The school serves a diverse student body in Sonora, CA.
What is the Resource Investment Index for Sonora High?
Sonora High has a Resource Investment Index of 32/100 (F) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.