Enrollment
409
California · 2024-25 NCES data
Elementary school (grades K-5) · Marina, CA
Ione Olson Elementary
Federal NCES profile for Ione Olson Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 18/100.
2024-25 NCES dataElementary school (grades K-5)NCES 062553003840
👥 S:T ratio 22
🌟 Gifted program 30
📋 Attendance 3
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Ione Olson Elementary earns 18/100 on the Resource Investment Index, with class sizes near the California median. It is also more racially and ethnically mixed than most California schools.
- #1 of 3
- elementary schools in Marina · Resource Index
- 18
- Resource Index · Lower
- 19.5:1
- students per teacher
- 52.7%
- free-lunch eligible
Ione Olson Elementary has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Ione Olson Elementary ranks #1 of 3 elementary schools in Marina, CA.
School address
District: Monterey Peninsula Unified · California
NCES ID 062553003840 Verify on NCES CCD record →
Teachers (FTE)
21.0
Federal CCD staff survey
Students per teacher
19.5:1
vs 21.5:1 California avg
-9% vs state
Free-lunch eligible
52.7%
vs 55.5% California avg
-5% vs state
Student-teacher ratio in context
How Ione Olson Elementary compares with California and U.S. medians
What stands out at Ione Olson Elementary
Ione Olson Elementary is a higher-need, mid-sized elementary school in Marina, California, enrolling 409 students.
Class sizes run a bit leaner than typical: 19.5:1 puts it in the smaller third of California schools by student-teacher ratio.
Its free-meal eligibility rate of 52.7% lands close to the California typical range, neither a high- nor low-need campus by this measure.
With 409 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index lands in the lower third of 9,998 scored California schools.
Among 1,397 similarly sized, similarly resourced-need California schools statewide, it ranks #1,093, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (47%) and White (24%), more mixed than most schools in the state (diversity index 70/100).
Chronic absenteeism is elevated: 38.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Marina's elementary schools, it stands alongside J. C. Crumpton Elementary (562 students): Ione Olson Elementary is smaller than that campus by headcount and runs leaner classes (19.5:1 vs 23.4:1).
Monterey Peninsula Unified also operates Monterey High (1,401 students) and Seaside High (1,073 students) alongside Ione Olson Elementary.
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 Ione Olson Elementary compares
Ione Olson Elementary on the metrics families compare, against 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 | 52.7% | ▼ 5% | 55.5% | 51.7% |
| Enrollment | 409 | top 59% | - | - |
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.
409
Bigger than 49% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
52.7%
free-lunch eligible
- 5% below the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
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
38.6%
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
$16,404
per pupil, district-wide
- below California avg of $16,509
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 1 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.2 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 46.5%
White 24.0%
Asian 12.4%
Two or More 10.6%
African American 5.0%
Native Hawaiian / Pacific Islander 1.5%
Largest group: Hispanic or Latino at 46.5% of enrollment.
Student-body diversity index 69.7/100
Simpson diversity index - at 69.7, Ione Olson Elementary is more mixed than the California school average of 46.0.
Programs
Funding & spending
District-wide per-pupil expenditure for Monterey Peninsula Unified, which includes Ione Olson Elementary.
$16,404
Per student
-1%
vs California
Avg $16,509
-1%
vs U.S.
Avg $16,593
Revenue mix
Local 46.8%
State 40.7%
Federal 12.5%
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 Ione Olson Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Monterey High | Larger | Lower economic need | Higher S:T ratio |
| Seaside High | Larger | Higher economic need | Higher S:T ratio |
| Marina High | Larger | Similar economic need | Similar S:T ratio |
| La Mesa | Larger | Lower economic need | Higher S:T ratio |
| Monte Vista | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Ione Olson Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,401
- Students per teacher
- 21.6:1
- Resource Index
- 27/100
- Enrollment
- 1,073
- Students per teacher
- 21:1
- Resource Index
- 28/100
- Enrollment
- 721
- Students per teacher
- 20.6:1
- Resource Index
- 27/100
- Enrollment
- 689
- Students per teacher
- 26.5:1
- Resource Index
- 32/100
- Enrollment
- 688
- Students per teacher
- 26.5:1
- Resource Index
- 31/100
Similar elementary schools in Marina
2 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 (~409 students)
Similar student-teacher ratio (~19.5:1)
Next steps
Verify locally before acting on Ione Olson Elementary's federal record.
- Compare Ione Olson Elementary against another school. Compare schools
- Monterey Peninsula Unified'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 Ione Olson Elementary
How many students attend Ione Olson Elementary?
Ione Olson Elementary has 409 students enrolled. It is an elementary school in Marina, CA.
What is the student-teacher ratio at Ione Olson Elementary?
The student-teacher ratio at Ione Olson 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 Ione Olson Elementary?
52.7% of students at Ione Olson Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Ione Olson Elementary?
The largest demographic group at Ione Olson Elementary is Hispanic or Latino at 46.5% of enrollment, in Marina, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 69.7/100.
What is the Resource Investment Index for Ione Olson Elementary?
Ione Olson Elementary has a Resource Investment Index of 18/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Ione Olson Elementary rank among elementary schools in Marina?
By Resource Investment Index, Ione Olson Elementary ranks #1 of 3 elementary schools in Marina, 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 Marina on the city page.
Is Ione Olson Elementary a good school?
Ione Olson Elementary earns 18/100 on the Resource Investment Index, with class sizes near the California median. It is also more racially and ethnically mixed than most California schools. 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 Monterey Peninsula Unified?
Besides Ione Olson Elementary, Monterey Peninsula Unified also operates Monterey High (1,401 students), Seaside High (1,073 students), and Marina High (721 students). See the Monterey Peninsula Unified 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.