Enrollment
571
California · 2024-25 NCES data
Elementary school (grades K-5) · Greenfield, CA
Arroyo Seco Academy
Federal NCES profile for Arroyo Seco Academy, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 35/100.
2024-25 NCES dataElementary school (grades K-5)NCES 061608014263
👥 S:T ratio 18
🌟 Gifted program 30
🎓 Counselors 0
📋 Attendance 92
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Arroyo Seco Academy earns 35/100 on the Resource Investment Index, with class sizes near the California median. It is also less racially and ethnically mixed than most California schools.
- #1 of 4
- elementary schools in Greenfield · Resource Index
- 35
- Resource Index · Typical
- 20.4:1
- students per teacher
- 81.9%
- free-lunch eligible
Arroyo Seco Academy has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Arroyo Seco Academy ranks #1 of 4 elementary schools in Greenfield, CA.
School address
District: Greenfield Union Elementary · California
NCES ID 061608014263 Verify on NCES CCD record →
Teachers (FTE)
28.0
Federal CCD staff survey
Students per teacher
20.4:1
vs 21.5:1 California avg
-5% vs state
Free-lunch eligible
81.9%
vs 55.5% California avg
+48% vs state
Student-teacher ratio in context
How Arroyo Seco Academy compares with California and U.S. medians
What stands out at Arroyo Seco Academy
Arroyo Seco Academy is a high-poverty, mid-sized elementary school in Greenfield, California, enrolling 571 students.
Class sizes run a bit leaner than typical: 20.4:1 puts it in the smaller third of California schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 81.9% of students eligible for free meals.
Enrollment of 571 puts it in the larger third of California schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 9,998 scored California schools.
Against 2,013 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #245.
Its student body is predominantly Hispanic or Latino (99% of enrollment), among the less diverse in the state (diversity index 2/100).
Counselor access is stretched at roughly 571 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance holds up well here: only 3.3% of students were chronically absent, below the typical post-pandemic national figure.
Among Greenfield's elementary schools, it stands alongside Oak Avenue Elementary (693 students): Arroyo Seco Academy is smaller than that campus by headcount and runs leaner classes (20.4:1 vs 24.8:1).
Greenfield Union Elementary also operates Vista Verde Middle (727 students) and Oak Avenue Elementary (693 students) alongside Arroyo Seco Academy.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Arroyo Seco Academy compares
Arroyo Seco Academy on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 20.4:1 | ▼ 5% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 81.9% | ▲ 48% | 55.5% | 51.7% |
| Enrollment | 571 | top 35% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
20.4:1
Leaner classes than 15% of US schools, heavier class loads than most.
571
Bigger than 70% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
81.9%
free-lunch eligible
- 48% above the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
20.4:1
students per teacher
- 5% below state mean
Top 38% in California - lower ratio than 62% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
3.3%
chronically absent (missed 10%+ of school days)
Below 5%, comfortably under the pre-pandemic national baseline for chronic absenteeism.
Funding equity
$14,838
per pupil, district-wide
- below California avg of $16,509
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 571 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 6 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 1.1 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
Hispanic or Latino 99.1%
White 0.7%
Two or More 0.2%
Largest group: Hispanic or Latino at 99.1% of enrollment.
Student-body diversity index 1.8/100
Simpson diversity index - at 1.8, Arroyo Seco Academy is less mixed than the California school average of 46.0.
Programs
Funding & spending
District-wide per-pupil expenditure for Greenfield Union Elementary, which includes Arroyo Seco Academy.
$14,838
Per student
-10%
vs California
Avg $16,509
-11%
vs U.S.
Avg $16,593
Revenue mix
Local 16.3%
State 71.8%
Federal 11.9%
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.
How Arroyo Seco Academy Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Vista Verde Middle | Larger | Similar economic need | Higher S:T ratio |
| Oak Avenue Elementary | Similar size | Similar economic need | Higher S:T ratio |
| Mary Chapa Academy | Similar size | Similar economic need | Higher S:T ratio |
| Cesar Chavez Elementary | Similar size | Lower economic need | Higher S:T ratio |
Comparisons are relative to Arroyo Seco Academy's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 727
- Students per teacher
- 23.5:1
- Resource Index
- 32/100
- Enrollment
- 693
- Students per teacher
- 24.8:1
- Resource Index
- 26/100
- Enrollment
- 686
- Students per teacher
- 22.1:1
- Resource Index
- 35/100
- Enrollment
- 642
- Students per teacher
- 24.7:1
- Resource Index
- 26/100
Similar elementary schools in Greenfield
3 comparable elementary schools (grades K-5) serving the same city.
Similar elementary schools statewide
Matched by enrollment size and by staffing ratio across all of California, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~571 students)
Next steps
Verify locally before acting on Arroyo Seco Academy's federal record.
- Compare Arroyo Seco Academy against another school. Compare schools
- Greenfield Union Elementary's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Arroyo Seco Academy
How many students attend Arroyo Seco Academy?
Arroyo Seco Academy has 571 students enrolled. It is an elementary school in Greenfield, CA.
What is the student-teacher ratio at Arroyo Seco Academy?
The student-teacher ratio at Arroyo Seco Academy is 20.4:1, which is 5% lower than the California average of 21.5:1 and 30% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Arroyo Seco Academy?
81.9% of students at Arroyo Seco Academy are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Arroyo Seco Academy?
The largest demographic group at Arroyo Seco Academy is Hispanic or Latino at 99.1% of enrollment, in Greenfield, CA.
What is the Resource Investment Index for Arroyo Seco Academy?
Arroyo Seco Academy has a Resource Investment Index of 35/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Arroyo Seco Academy rank among elementary schools in Greenfield?
By Resource Investment Index, Arroyo Seco Academy ranks #1 of 4 elementary schools in Greenfield, 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 Greenfield on the city page.
Is Arroyo Seco Academy a good school?
Arroyo Seco Academy earns 35/100 on the Resource Investment Index, with class sizes near the California median. It is also less racially and ethnically mixed than most California schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Greenfield Union Elementary?
Besides Arroyo Seco Academy, Greenfield Union Elementary also operates Vista Verde Middle (727 students), Oak Avenue Elementary (693 students), and Mary Chapa Academy (686 students). See the Greenfield Union Elementary district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.