Enrollment
1,653
California · 2024-25 NCES data
2024-25 NCES data High school (grades 9-12) NCES 063025004715
Casa Grande High — Petaluma, CA
Federal NCES profile for Casa Grande High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 39/100.
👥 Class size 10
📚 AP courses 70
🌟 Gifted program 30
🎓 Counselors 34
📋 Attendance 50
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: Petaluma Joint 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)
76.0
Federal CCD staff survey
Students per teacher
22.5:1
vs 21.6:1 California avg
+4% vs state
Free-lunch eligible
33.1%
vs 55.5% California avg
-40% vs state
Student-teacher ratio in context
How Casa Grande 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
Casa Grande High reports 1,653 enrolled students to the National Center for Education Statistics (NCES) alongside 76.0 full-time-equivalent teachers, producing a 22.5:1 student-teacher ratio. That figure sits 4% 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 42% higher, a useful calibration for families comparing districts across state lines.
Title I and federal lunch eligibility offer another window into the student body: 33.1% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 40% below the California average and 36% below the national baseline. The school offers 14 Advanced Placement courses, a stronger academic pipeline indicator than enrollment alone. Counselor coverage works out to roughly 331 students per counselor, above the ASCA-recommended ceiling of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 20.1% according to the 2021-22 Civil Rights Data Collection.
Taken together, these measurements produce a Resource Investment Index of 39/100 (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 Casa Grande 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 | 22.5:1 | ▲ 4% | 21.6:1 | 15.9:1 |
| Free-lunch eligible | 33.1% | ▼ 40% | 55.5% | 51.8% |
| Enrollment | 1,653 | top 95% | — | — |
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
33.1%
free-lunch eligible
— 40% 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
22.5:1
students per teacher
— 4% above state mean
Top 55% in California — lower ratio than 45% of state schools
Above 20:1 — larger class loads than the typical U.S. public school; staffing is stretched relative to enrollment.
Engagement
20.1%
chronically absent (missed 10%+ of school days)
Chronic absenteeism at or above 20% — the CDC threshold for "high" — signals significant barriers to regular attendance.
Support staff
Counselors5.0 FTE
Per 331 students — the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 44 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 2.7 per 100 students. Reported via the Civil Rights Data Collection. Includes 3 expulsions.
Overview
Enrollment 1,653 Top 95% in California — larger than 5% of 10,006 state schools
Teachers (FTE) 76.0
Students per teacher 22.5:1 +4% vs state
Free-lunch eligible 33.1% -40% vs state
NCES ID 063025004715
Student demographics
Hispanic or Latino 46.8%
White 41.8%
Two or More 5.5%
Asian 3.6%
African American 1.6%
American Indian / Alaska Native 0.3%
Native Hawaiian / Pacific Islander 0.3%
Largest group: Hispanic or Latino at 46.8% of enrollment.
Programs & staff
AP courses offered 14
Counselors (FTE) 5.0
Students per counselor 331:1
Discipline & special education
Chronically absent 20.1%
In-school suspensions 0
Out-of-school suspensions 44
Expulsions 3
Other Schools in This District
- Enrollment
- 1,193
- Students per teacher
- 21.4:1
- Enrollment
- 812
- Students per teacher
- 20.5:1
- Enrollment
- 494
- Students per teacher
- 26.6:1
- Enrollment
- 454
- Students per teacher
- 20.5:1
- Enrollment
- 115
- Students per teacher
- 30.8:1
Similar high schools in Petaluma
4 comparable high schools (grades 9-12) serving the same city.
Petaluma High
Standard public school
1,193 students 21.4:1 students per teacher
San Antonio High (Continuation)
Alternative education program
65 students 14.3:1 students per teacher
Sonoma Mountain High (Continuation)
Alternative education program
21 students 23:1 students per teacher
Carpe Diem High (Continuation)
Alternative education program
19 students 15.5:1 students per teacher
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 Casa Grande High
How many students attend Casa Grande High?
Casa Grande High has 1,653 students enrolled. It is a high school in Petaluma, CA.
What is the student-teacher ratio at Casa Grande High?
The student-teacher ratio at Casa Grande High is 22.5:1, which is 4% higher than the California average of 21.6:1 and 42% higher than the national average of 15.9:1.
What percentage of students receive free lunch at Casa Grande High?
33.1% of students at Casa Grande High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Casa Grande High?
The largest demographic group at Casa Grande High is Hispanic or Latino at 46.8%. The school serves a diverse student body in Petaluma, CA.
What is the Resource Investment Index for Casa Grande High?
Casa Grande High has a Resource Investment Index of 39/100 (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.