Elementary school (grades K-5) · Samoa, CA
Peninsula Union
Federal NCES profile for Peninsula Union, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 10/100.
The verdict
Peninsula Union earns 10/100 on the Resource Investment Index, with class sizes larger than 98% of California schools. It is also more racially and ethnically mixed than most California schools.
- 10
- Resource Index · Lower
- 33:1
- large classes for California
- 82.1%
- free-lunch eligible
- 66
- students enrolled
Peninsula Union has class sizes larger than 98% of California schools. Computed live against every California school reporting to NCES.
School address
NCES ID 063009004708 Verify on NCES CCD record →
NCES CCD universe card
School universe 063009004708 · Samoa, CA Elementary · SMALL · TRAD
66 enr · 33:1 · 82.1% lunch · RII 10
Nearest enrollment peer: Aspire Academy Charter (100 students)
Peninsula Union CCD stamps from the federal school universe. NCES Common Core of Data stamps for this campus. Read with this school → · District book → · California schools → · Find another →
How Peninsula Union compares
Peninsula Union on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 33:1 | ▲ 53% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 82.1% | ▲ 48% | 55.5% | 51.7% |
| Enrollment | 66 | top 92% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Equity indicators (what these measure)
Student demographics
Largest group: White at 48.5% of enrollment.
Simpson diversity index - at 67.3, Peninsula Union is more mixed than the California school average of 46.0.
Programs
Funding & spending
District-wide per-pupil expenditure for Peninsula Union, which includes Peninsula Union.
Source: NCES F-33 School District Finance Survey District-level finance · FY 2022-23 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
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 (~66 students)
Frequently asked questions about Peninsula Union
How many students attend Peninsula Union?
Peninsula Union has 66 students enrolled. It is an elementary school in Samoa, CA.
What is the student-teacher ratio at Peninsula Union?
The student-teacher ratio at Peninsula Union is 33:1, which is 53% higher than the California average of 21.5:1 and 110% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Peninsula Union?
82.1% of students at Peninsula Union are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Peninsula Union?
The largest demographic group at Peninsula Union is White at 48.5% of enrollment, in Samoa, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 67.3/100.
What is the Resource Investment Index for Peninsula Union?
Peninsula Union has a Resource Investment Index of 10/100 (lower 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).
What other schools are in Peninsula Union?
None reported; Peninsula Union operates only Peninsula Union as a public school district in NCES's records.
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, the data changelog, or report a data error. Data current as of August 2026.