- Enrollment
- 564
- Students per teacher
- 22.6:1
- Resource Index
- 36/100
Elementary school (grades K-5) · Plumas Lake, CA
Cobblestone Elementary
Federal NCES profile for Cobblestone Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 35/100.
2024-25 NCES dataElementary school (grades K-5)NCES 063118012166
👥 S:T ratio 2
🌟 Gifted program 30
📋 Attendance 73
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Cobblestone Elementary earns 35/100 on the Resource Investment Index, with class sizes larger than 76% of California schools. It is also more racially and ethnically mixed than most California schools.
- #3 of 3
- public schools in Plumas Lake · Resource Index
- 35
- Resource Index · Typical
- 24.6:1
- large classes for California
- 27.7%
- free-lunch eligible
Cobblestone Elementary has class sizes larger than 76% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Cobblestone Elementary ranks #3 of 3 public schools in Plumas Lake, CA.
School address
District: Plumas Lake Elementary · California
NCES ID 063118012166 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+25 students YoY
Cobblestone Elementary held near 571 students from 2022-23 to 2023-24 (+25 headcount).
Teacher FTE added 24.0 → 26.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+25 students YoY 063118012166 · Plumas Lake, CA Elementary · MID · TRAD
590 enr · 24.6:1 · 27.7% lunch · RII 35
Nearest enrollment peer: Rio Del Oro Elementary (564 students)
Cobblestone Elementary held near 571 students from 2022-23 to 2023-24 (+25 headcount). Teacher FTE added 24.0 → 26.0 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Cobblestone Elementary in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- This school
Cobblestone Elementary
590 students
- Rio Del Oro El
Rio Del Oro Elementary
564 students
- Riverside Mead
Riverside Meadows Intermediate
528 students
What this shows Cobblestone Elementary reports 590 students on the CCD universe file.
How Cobblestone Elementary compares
Cobblestone Elementary held steady on CCD headcount: ratios and free-lunch share vs California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 24.6:1 | ▲ 14% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 27.7% | ▼ 50% | 55.5% | 51.7% |
| Enrollment | 590 | top 33% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
24.6:1
Leaner classes than 6% of US schools, heavier class loads than most.
590
Bigger than 72% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
27.7%
free-lunch eligible
- 50% 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
24.6:1
students per teacher
- 14% above state mean
Top 76% in California - lower ratio than 24% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
10.8%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
Funding equity
$15,424
per pupil, district-wide
- below California avg of $18,665
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
3
in-school suspensions + 11 out-of-school
Suspension rate: 0.5 per 100 students. Combined in-school and out-of-school rate: 2.4 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 36.1%
White 30.5%
Asian 15.8%
Two or More 10.7%
African American 5.6%
Native Hawaiian / Pacific Islander 1.0%
American Indian / Alaska Native 0.3%
Largest group: Hispanic or Latino at 36.1% of enrollment.
Student-body diversity index 73.7/100
Simpson diversity index - at 73.7, Cobblestone Elementary is more mixed than the California school average of 46.0.
Programs
District finance for Plumas Lake Elementary reports $15,424 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Cobblestone Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Rio Del Oro Elementary | Similar size | Similar economic need | Lower S:T ratio |
| Riverside Meadows Intermediate | Similar size | Similar economic need | Lower S:T ratio |
Comparisons are relative to Cobblestone Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 528
- Students per teacher
- 21.1:1
- Resource Index
- 36/100
Similar elementary schools in Plumas Lake
1 comparable elementary schools (grades K-5) serving the same city.
Nationwide elementary schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~590 students)
Frequently asked questions about Cobblestone Elementary
How many students attend Cobblestone Elementary?
Cobblestone Elementary has 590 students enrolled. It is an elementary school in Plumas Lake, CA. CCD year-over-year: 546 (2022-23) → 571 (2023-24), nearly flat (+25).
What is the student-teacher ratio at Cobblestone Elementary?
The student-teacher ratio at Cobblestone Elementary is 24.6:1, which is 14% higher than the California average of 21.5:1 and 57% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Cobblestone Elementary?
27.7% of students at Cobblestone Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Cobblestone Elementary?
The largest demographic group at Cobblestone Elementary is Hispanic or Latino at 36.1% of enrollment, in Plumas Lake, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 73.7/100.
What is the Resource Investment Index for Cobblestone Elementary?
Cobblestone Elementary has a Resource Investment Index of 35/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Cobblestone Elementary rank among public schools in Plumas Lake?
By Resource Investment Index, Cobblestone Elementary ranks #3 of 3 public schools in Plumas Lake, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking.
What other schools are in Plumas Lake Elementary?
Besides Cobblestone Elementary, Plumas Lake Elementary also operates Rio Del Oro Elementary (564 students) and Riverside Meadows Intermediate (528 students). See the Plumas Lake Elementary district page for the complete list.