At a glance
Reported students
512
NCES CCD 2024–25
Teachers (FTE)
27.57
NCES CCD 2024–25
Student–teacher ratio
18.6:1
Calculated; not a class-size measure
Grades served
09–12
NCES preliminary directory 2025–26
School benchmarks
California high enrollment
54th percentile
Compared with 2,195 same-level schools reporting enrollment.
District median enrollment
512
River Islands High: 512 reported students.
State peer staffing position
46th percentile
18.6:1 reported; state peer median 19.2:1. Ratio is not class size.
What the reported data says about River Islands High
River Islands High is a public high school serving grades 09–12 in Lathrop. It is one of 1 current school records connected to River Islands High District. NCES reports 512 students for 2024–25.
Among 2,195 high schools in California with comparable records, this school is larger than the reported median of 416 students. Its enrollment is at approximately the 54th percentile for that peer group. Size describes the campus, not instructional quality.
The reported student–teacher ratio is 18.6:1, close to the California median of 19.2:1 for the same school level. This ratio uses total enrollment and teacher FTE; it is not an average classroom headcount and can be affected by special programs or part-time staffing.
The largest reported race and ethnicity groups are Asian (47.9%) and Hispanic or Latino (29.9%). These figures help families understand who the school serves; they are not rating inputs.
Questions worth asking River Islands High
- 1How do the reported 18.6:1 student–teacher ratio and 27.57 teacher FTE translate into actual class sizes by grade?
- 2Which advanced, gifted, career, arts, and computer-science courses are available this year, and how do students qualify?
- 3How many counselors, nurses, psychologists, and social workers currently serve students?
- 4What meal assistance, transportation, after-school, and family-support services are currently available?
Enrollment needs
- Free/reduced-price lunch
- 37.9%
- Lunch program
- Yes participating without using any Provision or the CEO
Student demographics
Race and ethnicity share of reported enrollment
- White8%
- Hispanic29.9%
- Black10.9%
- Asian47.9%
- American Indian / Alaska Native1%
- Native Hawaiian / Pacific Islander1.4%
- Multiracial1%
Race/ethnicity: NCES CCD 2024–25. English learner and disability context: CRDC 2021–22. Lunch eligibility: NCES CCD 2024–25. Privacy rules can produce missing values.