Enrollment
528
California · 2024-25 NCES data
Elementary school (grades K-5) · San Jose, CA
Rocketship Mosaic Elementary
Federal NCES profile for Rocketship Mosaic Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 21/100.
2024-25 NCES dataElementary school (grades K-5)NCES 060244412645Charter school
👥 S:T ratio 0
🌟 Gifted program 30
🎓 Counselors 43
📋 Attendance 13
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Rocketship Mosaic Elementary earns 21/100 on the Resource Investment Index, with class sizes larger than 98% of California schools.
- #122 of 154
- elementary schools in San Jose · Resource Index
- 21
- Resource Index · Lower
- 33:1
- large classes for California
- 57.2%
- free-lunch eligible
Rocketship Mosaic Elementary has class sizes larger than 98% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Rocketship Mosaic Elementary ranks #122 of 154 elementary schools in San Jose, CA.
School address
District: Rocketship Mosaic Elementary District · California
NCES ID 060244412645 Verify on NCES CCD record →
Teachers (FTE)
16.0
Federal CCD staff survey
Students per teacher
33:1
vs 21.5:1 California avg
+53% vs state
Free-lunch eligible
57.2%
vs 55.5% California avg
+3% vs state
Student-teacher ratio in context
How Rocketship Mosaic Elementary compares with California and U.S. medians
What stands out at Rocketship Mosaic Elementary
Rocketship Mosaic Elementary is a higher-need, mid-sized charter elementary school in San Jose, California, enrolling 528 students.
Class loads run heavy: 33:1 is larger than about 98% of California schools and 53% above the 21.5:1 state mean, so each teacher carries more students than is typical.
Its free-meal eligibility rate of 57.2% lands close to the California typical range, neither a high- nor low-need campus by this measure.
With 528 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.
Against 1,761 statewide peers matched on enrollment and economic need, it ranks mid-pack at #1,142.
Its student body is led by Asian (52%) and Hispanic or Latino (45%) (diversity index 53/100).
Counselor coverage runs a bit thin, about 285 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 34.8% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among San Jose's elementary schools, it stands alongside Easterbrook Discovery (952 students): Rocketship Mosaic Elementary is smaller than that campus by headcount and runs heavier classes (33:1 vs 22.1:1).
Rocketship Mosaic Elementary District is a single-school charter district, so Rocketship Mosaic Elementary operates independently rather than alongside district-mates.
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 Rocketship Mosaic Elementary compares
Rocketship Mosaic 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 | 33:1 | ▲ 53% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 57.2% | ▲ 3% | 55.5% | 51.7% |
| Enrollment | 528 | top 41% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
33:1
Leaner classes than 1% of US schools, heavier class loads than most.
528
Bigger than 65% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
57.2%
free-lunch eligible
- 3% 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
33:1
students per teacher
- 53% above state mean
Top 98% in California - lower ratio than 2% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
34.8%
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
$16,878
per pupil, district-wide
- above California avg of $16,509
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors1.9 FTE
Per 285 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 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
Asian 51.7%
Hispanic or Latino 44.5%
White 1.7%
African American 0.9%
Two or More 0.8%
Native Hawaiian / Pacific Islander 0.4%
Largest group: Asian at 51.7% of enrollment.
Student-body diversity index 53.4/100
Simpson diversity index - at 53.4, Rocketship Mosaic Elementary is more mixed than the California school average of 46.0.
Programs
Funding & spending
District-wide per-pupil expenditure for Rocketship Mosaic Elementary District, which includes Rocketship Mosaic Elementary.
$16,878
Per student
+2%
vs California
Avg $16,509
+2%
vs U.S.
Avg $16,593
Revenue mix
Local 18.9%
State 66.5%
Federal 14.6%
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.
Similar elementary schools in San Jose
6 comparable elementary schools (grades K-5) serving the same city.
Easterbrook Discovery
Standard public school
952 students 22.1:1 students per teacher
Merritt Trace Elementary
Standard public school
829 students 23:1 students per teacher
Orchard Elementary
Standard public school
740 students 16.4:1 students per teacher
Tom Matsumoto Elementary
Standard public school
727 students 24.2:1 students per teacher
Herman (Leonard) Intermediate
Standard public school
723 students 22.6:1 students per teacher
Booksin Elementary
Standard public school
715 students 23.8:1 students per teacher
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 (~528 students)
Similar student-teacher ratio (~33:1)
Next steps
Verify locally before acting on Rocketship Mosaic Elementary's federal record.
- Compare Rocketship Mosaic Elementary against another school. Compare schools
- Rocketship Mosaic Elementary District'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 Rocketship Mosaic Elementary
How many students attend Rocketship Mosaic Elementary?
Rocketship Mosaic Elementary has 528 students enrolled. It is an elementary school in San Jose, CA.
What is the student-teacher ratio at Rocketship Mosaic Elementary?
The student-teacher ratio at Rocketship Mosaic Elementary 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 Rocketship Mosaic Elementary?
57.2% of students at Rocketship Mosaic Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Rocketship Mosaic Elementary?
The largest demographic group at Rocketship Mosaic Elementary is Asian at 51.7% of enrollment, in San Jose, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 53.4/100.
What is the Resource Investment Index for Rocketship Mosaic Elementary?
Rocketship Mosaic Elementary has a Resource Investment Index of 21/100 (lower 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 Rocketship Mosaic Elementary rank among elementary schools in San Jose?
By Resource Investment Index, Rocketship Mosaic Elementary ranks #122 of 154 elementary schools in San Jose, 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 San Jose on the city page.
Is Rocketship Mosaic Elementary a good school?
Rocketship Mosaic Elementary earns 21/100 on the Resource Investment Index, with class sizes larger than 98% of 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 Rocketship Mosaic Elementary District?
None; Rocketship Mosaic Elementary District is a single-school charter district, and Rocketship Mosaic Elementary is its only campus.
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.