- Enrollment
- 451
- Students per teacher
- 22.6:1
- Resource Index
- 24/100
Elementary school (grades K-5) · Petaluma, CA
Old Adobe Elementary Charter
Federal NCES profile for Old Adobe Elementary Charter, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 33/100.
2024-25 NCES dataElementary school (grades K-5)NCES 062832004386Charter school
👥 S:T ratio 7
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 55
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Old Adobe Elementary Charter earns 33/100 on the Resource Investment Index, with class sizes near the California median.
- #15 of 25
- elementary schools in Petaluma · Resource Index
- 33
- Resource Index · Typical
- 23.2:1
- students per teacher
- 20.8%
- free-lunch eligible
Old Adobe Elementary Charter has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Old Adobe Elementary Charter ranks #15 of 25 elementary schools in Petaluma, CA.
School address
District: Old Adobe Union · California
NCES ID 062832004386 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+7 students YoY
Old Adobe Elementary Charter held near 295 students from 2022-23 to 2023-24 (+7 headcount).
Teacher FTE added 12.0 → 13.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+7 students YoY 062832004386 · Petaluma, CA Elementary · SMALL · CHARTER
278 enr · 23.2:1 · 20.8% lunch · RII 33
Nearest enrollment peer: Loma Vista Immersion Academy (451 students)
Old Adobe Elementary Charter held near 295 students from 2022-23 to 2023-24 (+7 headcount). Teacher FTE added 12.0 → 13.0 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Old Adobe Elementary Charter in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Loma Vista Imm
Loma Vista Immersion Academy
451 students
- Sonoma Mountai
Sonoma Mountain Elementary
422 students
- La Tercera Ele
La Tercera Elementary
295 students
- Miwok Valley E
Miwok Valley Elementary Charter
288 students
- This school
Old Adobe Elementary Charter
278 students
What this shows Old Adobe Elementary Charter reports 278 students on the CCD universe file.
How Old Adobe Elementary Charter compares
Old Adobe Elementary Charter 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 | 23.2:1 | ▲ 8% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 20.8% | ▼ 63% | 55.5% | 51.7% |
| Enrollment | 278 | top 76% | - | - |
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.
278
Bigger than 29% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
20.8%
free-lunch eligible
- 63% below the California average of 55.5%
Below the 40% Title I threshold, among the lower-need profiles in the state; 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
18.0%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$16,647
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
Counselors0.5 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
2
in-school suspensions + 6 out-of-school
Suspension rate: 0.7 per 100 students. Combined in-school and out-of-school rate: 2.9 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 69.1%
Hispanic or Latino 24.5%
Two or More 5.8%
African American 0.4%
Asian 0.4%
Largest group: White at 69.1% of enrollment.
Student-body diversity index 45.9/100
Simpson diversity index - at 45.9, Old Adobe Elementary Charter is about as mixed as the California school average of 46.0.
Programs
Gifted & talented Yes
District finance for Old Adobe Union reports $16,647 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Old Adobe Elementary Charter Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Loma Vista Immersion Academy | Larger | Similar economic need | Similar S:T ratio |
| Sonoma Mountain Elementary | Larger | Lower economic need | Higher S:T ratio |
| La Tercera Elementary | Similar size | Higher economic need | Similar S:T ratio |
| Miwok Valley Elementary Charter | Similar size | Higher economic need | Lower S:T ratio |
Comparisons are relative to Old Adobe Elementary Charter's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 422
- Students per teacher
- 26.4:1
- Resource Index
- 33/100
- Enrollment
- 295
- Students per teacher
- 22.7:1
- Resource Index
- 29/100
- Enrollment
- 288
- Students per teacher
- 19.2:1
- Resource Index
- 36/100
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 29.1:1 students per teacher
Loma Vista Immersion Academy
Standard public school
451 students 22.6:1 students per teacher
Sonoma Mountain Elementary
Standard public school
422 students 26.4:1 students per teacher
Corona Creek Elementary
Standard public school
403 students 22.4:1 students per teacher
Grant Elementary
Standard public school
386 students 24.1:1 students per teacher
Meadow Elementary
Standard public school
384 students 24:1 students per teacher
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 (~278 students)
Frequently asked questions about Old Adobe Elementary Charter
How many students attend Old Adobe Elementary Charter?
Old Adobe Elementary Charter has 278 students enrolled. It is an elementary school in Petaluma, CA. CCD year-over-year: 288 (2022-23) → 295 (2023-24), nearly flat (+7).
What is the student-teacher ratio at Old Adobe Elementary Charter?
The student-teacher ratio at Old Adobe Elementary Charter 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 Old Adobe Elementary Charter?
20.8% of students at Old Adobe Elementary Charter are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Old Adobe Elementary Charter?
The largest demographic group at Old Adobe Elementary Charter is White at 69.1% of enrollment, in Petaluma, CA.
What is the Resource Investment Index for Old Adobe Elementary Charter?
Old Adobe Elementary Charter has a Resource Investment Index of 33/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Old Adobe Elementary Charter rank among elementary schools in Petaluma?
By Resource Investment Index, Old Adobe Elementary Charter ranks #15 of 25 elementary schools in Petaluma, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Petaluma on the city page.
What other schools are in Old Adobe Union?
Besides Old Adobe Elementary Charter, Old Adobe Union also operates Loma Vista Immersion Academy (451 students), Sonoma Mountain Elementary (422 students), and La Tercera Elementary (295 students). See the Old Adobe Union district page for the complete list.