Enrollment
135
California · 2024-25 NCES data
2024-25 NCES data Elementary school (grades K-5) NCES 064026006654
Two Rock Elementary — Petaluma, CA
Federal NCES profile for Two Rock Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 27/100.
👥 Class size 12
🌟 Gifted program 30
🎓 Counselors 33
📋 Attendance 33
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 →
The verdict
Two Rock Elementary earns an F Resource Investment Index (27/100), with class sizes near the California median.
- F
- Resource Index · 27/100
- 22:1
- students per teacher
- 32.6%
- free-lunch eligible
- 135
- students enrolled
School address
District: Two Rock Union · 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)
6.0
Federal CCD staff survey
Students per teacher
22:1
vs 21.6:1 California avg
+2% vs state
Free-lunch eligible
32.6%
vs 55.5% California avg
-41% vs state
Student-teacher ratio in context
How Two Rock Elementary 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
Two Rock Elementary reports 135 enrolled students to the National Center for Education Statistics (NCES) alongside 6.0 full-time-equivalent teachers, producing a 22:1 student-teacher ratio. That figure sits 2% 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 15.7:1, it is 40% higher, a useful calibration for families comparing districts across state lines.
Title I and federal lunch eligibility offer another window into the student body: 32.6% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 41% below the California average and 37% below the national baseline. Counselor coverage works out to roughly 338 students per counselor, above the ASCA-recommended ceiling of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 26.7% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding Two Rock Union spends $15,784 per pupil district-wide, below the California average of $16,509 and below the national average of $16,593. Revenue comes 24.8% from local sources (property taxes), 51.9% from the state, and 23.2% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 27/100 (F), calculated from 4 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 Two Rock Elementary 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 | 22:1 | ▲ 2% | 21.6:1 | 15.7:1 |
| Free-lunch eligible | 32.6% | ▼ 41% | 55.5% | 51.8% |
| Enrollment | 135 | top 13% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Class size vs. every US school
Students per teacher (lower means more individual attention)
22 smaller classes than 10% of 92,598 US schools
Each bar is a band; taller bars hold more US schools. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Department of Education — NCES Common Core of Data · 2024-25
School size vs. every US school
Total enrollment — where this school sits by size (neither large nor small is 'better')
135 larger than 13% of 95,891 US schools
Each bar is a band; taller bars hold more US schools. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Department of Education — NCES Common Core of Data · 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
32.6%
free-lunch eligible
— 41% 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
22:1
students per teacher
— 2% above state mean
Top 50% in California — lower ratio than 50% of state schools
Above 20:1 — larger class loads than the typical U.S. public school; staffing is stretched relative to enrollment.
Engagement
26.7%
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
$15,784
per pupil, district-wide
— below California avg of $16,509
Below the U.S. average per-pupil spend — funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors0.4 FTE
Per 337 students — the combined health-and-guidance staffing load for this school.
Discipline context
2
in-school suspensions + 2 out-of-school
Suspension rate: 1.5 per 100 students. Combined in-school and out-of-school rate: 3.0 per 100 students. Reported via the Civil Rights Data Collection.
Overview
Enrollment 135 Top 13% in California — larger than 87% of 10,006 state schools
Teachers (FTE) 6.0
Students per teacher 22:1 +2% vs state
Free-lunch eligible 32.6% -41% vs state
NCES ID 064026006654
Student demographics
Hispanic or Latino 52.6%
White 34.8%
Two or More 10.4%
African American 1.5%
Native Hawaiian / Pacific Islander 0.7%
Largest group: Hispanic or Latino at 52.6% of enrollment.
Programs & staff
Counselors (FTE) 0.4
Students per counselor 338:1
Discipline & special education
Chronically absent 26.7%
In-school suspensions 2
Out-of-school suspensions 2
Funding & spending
District-wide per-pupil expenditure for Two Rock Union, which includes Two Rock Elementary.
$15,784
Per student
-4%
vs California
Avg $16,509
-5%
vs U.S.
Avg $16,593
Revenue mix
Local 24.8%
State 51.9%
Federal 23.2%
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.
Similar elementary schools in Petaluma
6 comparable elementary schools (grades K-5) serving the same city.
Mary Collins Charter School at Cherry Valley
Standard public school
494 students 26.6:1 students per teacher
Loma Vista Immersion Academy
Standard public school
451 students 24.5:1 students per teacher
Sonoma Mountain Elementary
Standard public school
422 students 27.3:1 students per teacher
Corona Creek Elementary
Standard public school
403 students 22.1:1 students per teacher
Grant Elementary
Standard public school
386 students 23.8:1 students per teacher
Meadow Elementary
Standard public school
384 students 23.6:1 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 Two Rock Elementary
How many students attend Two Rock Elementary?
Two Rock Elementary has 135 students enrolled. It is a elementary school in Petaluma, CA.
What is the student-teacher ratio at Two Rock Elementary?
The student-teacher ratio at Two Rock Elementary is 22:1, which is 2% higher than the California average of 21.6:1 and 40% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Two Rock Elementary?
32.6% of students at Two Rock Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Two Rock Elementary?
The largest demographic group at Two Rock Elementary is Hispanic or Latino at 52.6%. The school serves a diverse student body in Petaluma, CA.
What is the Resource Investment Index for Two Rock Elementary?
Two Rock Elementary has a Resource Investment Index of 27/100 (F) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.
Is Two Rock Elementary a good school?
Two Rock Elementary earns an F Resource Investment Index (27/100), with class sizes near the California median. The Resource Investment Index reflects staffing, counselor access, gifted programs, and attendance reported to NCES, not test scores or academic outcomes, so treat it as a resource snapshot rather than an overall rating.