No UC admissions data on file for River Islands High.
This school doesn't appear in UCOP's source-school records (it may send few or no applicants to UC). Its enrollment trend and similar-school comparison are still below.
Compare with peers
Most similar nearby schools
Aspire Langston Hughes Academy → Weston Ranch High School → Delta Charter High School → Ripon High School → Lathrop High School → Compare all similar →📋 At a glance
- Program details not reported to CRDC
- Academic signals not yet ingested for this school
Composed from federal CRDC offerings, EDFacts ACGR, and other public data. Full breakdowns below.
How River Islands High compares for families
What families should know about River Islands High.
- ▸ vs Similar SchoolsThe closest comparables nearby: Aspire Langston Hughes Academy, Weston Ranch High School, Delta Charter High School and 2 more. See the sidebar to compare side-by-side.
For Parents
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Get an email when River Islands High's numbers change — new admissions results, enrollment shifts, test scores. A few updates a year, no spam.
SBAC academic outcomes — grade 11, 2025
Share of grade-11 students meeting or exceeding the California standard on Smarter Balanced ELA and Math. This is the academic-readiness signal that pairs with UC Reach (post-grad outcomes), stability (retention), and absenteeism (engagement). Note: statewide median Math is only ~20% — a school at 20% isn't an outlier; one at 45%+ genuinely is.
Source: California Assessment of Student Performance and Progress (CAASPP) Smarter Balanced research files. Benchmarks limited to non-virtual public & charter HS with ≥30 tested students.
Student composition — 2025-26
HS grades 9–12 racial/ethnic composition and program subgroups, from CDE Census Day Enrollment. Two-year shift shown when ≥1 pt — surfaces how the community served has changed since 2023-24.
Race / ethnicity
Program subgroups
Source: California Department of Education, Census Day Enrollment 2025-26 (HS grades 9–12). Δ shown when shift is ≥1 pt since 2023-24. Categories below 0.5% omitted.
Chronic absenteeism — 2024-25
Share of students missing 10% or more of expected attendance — the leading indicator that often precedes the demand decline shown above. Families disengaging tend to raise absenteeism first, then formally leave. Basis: grades 9–12.
Absenteeism is up 4.2 pp since 2022-23. A rising absenteeism trend often precedes formal departure — worth investigating which subgroups are driving it.
Source: California Department of Education, Chronic Absenteeism 2024-25. Benchmarks limited to non-virtual public & charter HS with ≥100 eligible students. CDE didn't publish a usable 2019-20 file (COVID).
Enrollment trend & projection
If this trend holds (+96.5%/yr, Total enrollment)
At per-pupil funding of $ / student:
| Horizon | Projected Total enrollment | Change | Funding impact / yr |
|---|---|---|---|
| 1 yr (2027) | ~1,645 | +808 | $0 |
| 3 yr (2029) | ~6,348 | +5511 | $0 |
| 5 yr (2031) | ~24,507 | +23670 | $0 |
Straight-line extrapolation of the recent annual rate — a what-if, not a forecast of intent. Default = California's LCFF base grant for grades 9–12 ($12,423/ADA). Edit the figure to match your school.
River Islands High — Enrollment & Outcomes Snapshot
Public · vs. 10 most similar nearby schools
- ▸Enrollment has been growing (+97.9%/yr); projects to ~6487 by 2029.
Enrollment projection
Your school vs. its 10 most similar nearby schools
| School | Type | Size | UC Reach | Enroll. trend |
|---|---|---|---|---|
| River Islands High | Public | 837 | — | — |
| Peer-group median | 12.4% | +17% | ||
| Aspire Langston Hughes Academy | Public | 809 | 28.7% | +36% |
| Weston Ranch High School | Public | 1093 | 12.9% | +4% |
| Delta Charter High School | Public | 768 | — | -29% |
| Ripon High School | Public | 1002 | 18.4% | +15% |
| Lathrop High School | Public | 1492 | 12.4% | +19% |
| East Union High School | Public | 1567 | 7.2% | -9% |
| One.charter | Public | 1312 | — | +547% |
| Escalon High School | Public | 776 | 9.4% | -5% |
| Sierra High School | Public | 1743 | 7.4% | +31% |
| Aspire Benjamin Holt College Preparatory Academy | Public | 698 | — | +129% |
UC Reach = top-6 UC admits ÷ senior class (can exceed 100% when students are admitted to multiple campuses). Enrollment trend = first-to-latest grade-12 change on file. Similar schools matched on proximity, size, type. Methodology →
Enrollment stability & demand — 2024-25
Two complementary signals: retention (do students stay once enrolled?) and demand (are families choosing the school?). Read against the San Joaquin County baseline — the demographic tide is moving every CA HS, so a school's gap vs. county is the actionable signal.
45 of 548 students who enrolled at River Islands High this year didn't maintain continuous enrollment (8.2% non-stability). Mid-year transfers, dropouts, and other exits are all counted.
Stability by student group
Nearest peer high schools
Source: California Department of Education, Stability Rate 2024-25. Benchmarks limited to non-virtual public & charter HS with ≥100 cumulative enrollees so by-design-high-churn continuation schools don't dominate the bottom of the distribution. Cumulative enrollment counts every student on the rolls during the year, so it can exceed peak-day enrollment.
For School Admins
The full Reach Report for River Islands High
A board- and LCAP-ready intelligence brief: your enrollment retention and college outcomes, benchmarked against your closest competitors, with a 5-year forecast, concrete steps to act on, and the rigor + outcomes story you can share with your families. Built from primary public data — prepared for you, not auto-generated.
- ✓Your 5-year enrollment forecast (currently 96.5%/yr) with the revenue at stake
- ✓Student-retention benchmarking vs your county median — and the LCAP evidence to back your goals