- Enrollment
- 2,156
- Students per teacher
- 20.9:1
- Resource Index
- 42/100
Elementary school (grades K-5) · Livermore, CA
Arroyo Seco Elementary
Federal NCES profile for Arroyo Seco Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 40/100.
2024-25 NCES dataElementary school (grades K-5)NCES 062211002620
👥 S:T ratio 22
🌟 Gifted program 70
📋 Attendance 27
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Arroyo Seco Elementary earns 40/100 on the Resource Investment Index, with class sizes near the California median. It is also more racially and ethnically mixed than most California schools.
- #3 of 11
- elementary schools in Livermore · Resource Index
- 40
- Resource Index · Typical
- 19.5:1
- students per teacher
- 33.6%
- free-lunch eligible
Arroyo Seco Elementary has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Arroyo Seco Elementary ranks #3 of 11 elementary schools in Livermore, CA.
School address
District: Livermore Valley Joint Unified · California
NCES ID 062211002620 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-5 students YoY
Arroyo Seco Elementary held near 582 students from 2022-23 to 2023-24 (-5 headcount).
Teacher FTE added 30.8 → 32.6 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-5 students YoY 062211002620 · Livermore, CA Elementary · MID · TRAD
584 enr · 19.5:1 · 33.6% lunch · RII 40
Nearest enrollment peer: Granada High (2,156 students)
Arroyo Seco Elementary held near 582 students from 2022-23 to 2023-24 (-5 headcount). Teacher FTE added 30.8 → 32.6 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Arroyo Seco Elementary in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Granada High
Granada High
2,156 students
- Livermore High
Livermore High
1,827 students
- William Menden
William Mendenhall Middle
876 students
- Junction K-8 801
Junction K-8
801 students
- Joe Michell 786
Joe Michell
786 students
- This school 584
Arroyo Seco Elementary
584 students
What this shows Arroyo Seco Elementary reports 584 students on the CCD universe file.
How Arroyo Seco Elementary compares
Arroyo Seco 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 | 19.5:1 | ▼ 9% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 33.6% | ▼ 39% | 55.5% | 51.7% |
| Enrollment | 584 | top 34% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
19.5:1
Leaner classes than 18% of US schools, heavier class loads than most.
584
Bigger than 71% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
33.6%
free-lunch eligible
- 39% 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
19.5:1
students per teacher
- 9% below state mean
Top 31% in California - lower ratio than 69% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
29.1%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$15,408
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
1
in-school suspensions + 3 out-of-school
Suspension rate: 0.2 per 100 students. Combined in-school and out-of-school rate: 0.7 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 46.1%
Hispanic or Latino 31.5%
Asian 12.3%
Two or More 8.2%
African American 1.5%
Native Hawaiian / Pacific Islander 0.3%
Largest group: White at 46.1% of enrollment.
Student-body diversity index 66.6/100
Simpson diversity index - at 66.6, Arroyo Seco Elementary is more mixed than the California school average of 46.0.
Programs
Gifted & talented Yes
District finance for Livermore Valley Joint Unified reports $15,408 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Arroyo Seco Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Granada High | Larger | Lower economic need | Similar S:T ratio |
| Livermore High | Larger | Similar economic need | Higher S:T ratio |
| William Mendenhall Middle | Larger | Lower economic need | Higher S:T ratio |
| Junction K-8 | Larger | Higher economic need | Similar S:T ratio |
| Joe Michell | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to Arroyo Seco Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,827
- Students per teacher
- 22:1
- Resource Index
- 37/100
- Enrollment
- 876
- Students per teacher
- 23.7:1
- Resource Index
- 36/100
- Enrollment
- 801
- Students per teacher
- 20.5:1
- Resource Index
- 24/100
- Enrollment
- 786
- Students per teacher
- 23.1:1
- Resource Index
- 28/100
Similar elementary schools in Livermore
6 comparable elementary schools (grades K-5) serving the same city.
Junction K-8
Standard public school
801 students 20.5:1 students per teacher
Joe Michell
Standard public school
786 students 23.1:1 students per teacher
Sunset Elementary
Standard public school
759 students 25.3:1 students per teacher
Emma C. Smith Elementary
Standard public school
648 students 22.3:1 students per teacher
Altamont Creek Elementary
Standard public school
620 students 23:1 students per teacher
Rancho Las Positas Elementary
Standard public school
586 students 20.9:1 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 (~584 students)
Frequently asked questions about Arroyo Seco Elementary
How many students attend Arroyo Seco Elementary?
Arroyo Seco Elementary has 584 students enrolled. It is an elementary school in Livermore, CA. CCD year-over-year: 587 (2022-23) → 582 (2023-24), nearly flat (-5).
What is the student-teacher ratio at Arroyo Seco Elementary?
The student-teacher ratio at Arroyo Seco Elementary is 19.5:1, which is 9% lower than the California average of 21.5:1 and 24% 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 Elementary?
33.6% of students at Arroyo Seco Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Arroyo Seco Elementary?
The largest demographic group at Arroyo Seco Elementary is White at 46.1% of enrollment, in Livermore, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 66.6/100.
What is the Resource Investment Index for Arroyo Seco Elementary?
Arroyo Seco Elementary has a Resource Investment Index of 40/100 (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 Arroyo Seco Elementary rank among elementary schools in Livermore?
By Resource Investment Index, Arroyo Seco Elementary ranks #3 of 11 elementary schools in Livermore, 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 Livermore on the city page.
What other schools are in Livermore Valley Joint Unified?
Besides Arroyo Seco Elementary, Livermore Valley Joint Unified also operates Granada High (2,156 students), Livermore High (1,827 students), and William Mendenhall Middle (876 students). See the Livermore Valley Joint Unified district page for the complete list.