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River Islands High District

Independent charter agency · Lathrop, CA · NCES 0602574

Official district website ↗Call (209) 717-6715Find a district school →

At a glance

Reported students

512

NCES CCD 2024–25

Open schools

1

NCES preliminary directory 2025–26

Student–teacher ratio

18.6:1

Calculated from NCES 2024–25 enrollment and teacher FTE

Spending per pupil

$21,222

Current expenditure · FY 2023 F-33

Instruction per pupil

$15,269

Calculated from FY 2023 F-33

Grades served

09–12

NCES preliminary directory 2025–26

What current records say about River Islands High District

River Islands High District operates 1 current public-school records serving grades 09–12 in Lathrop, California. NCES reports 512 students and 27.6 classroom teacher FTE for 2024–25.

Within California agencies of the same NCES type, it ranks 324 of 964 with reported enrollment. That position describes scale only—it does not say whether individual schools are a good fit for a particular student.

FY 2023 finance records show $21,222 in current expenditure per pupil and $15,269 per pupil assigned to instruction. Within the same NCES agency type, this places reported current spending 120 of 914 in California. Local wages, transportation, special education, facilities, and agency responsibilities all affect this comparison.

Reported needs and resources

Classroom teachers (FTE)
27.6
Current expenditure (FY 2023)
$2,292,000

Context measures describe who a district serves and its resources. They are not negative rating inputs.

River Islands High District

Lathrop, California

NCES EDGE 2024–25 · 37.8098, -121.3530

View office location on a map →

An office location does not show attendance boundaries. Ask the district to confirm the school assignment for a specific home address.

Enrollment questions to ask →

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 matched schools. Totals can differ due to rounding or source privacy rules.

Schools by level

Medians use schools reporting 2024–25 enrollment and teacher FTE.

LevelSchoolsMedian studentsMedian ratioCharter
High151218.6:11

Explore schools in River Islands High District

1 current directory entries

Search the full district by school name or level, or browse the alphabetical directory. Add schools to your comparison as you go.

Showing 1–1 of 1 schools · enrollment and ratios: NCES 2024–25. Scroll the table to see all columns.

Schools, grade spans, enrollment, and student–teacher ratios
SchoolLevel / gradesStudentsRatioCompare
River Islands HighCharterHigh09–1251218.6:1

Cities served by River Islands High District

Grouped by school mailing address. City pages also include schools run by other districts and charter agencies.

Frequently asked questions about River Islands High District

How many schools are in River Islands High District?

River Islands High District has 1 open public schools in the NCES 2025–26 preliminary directory: 1 high. 1 are identified as charter schools.

How many students attend River Islands High District?

NCES reports 512 students for 2024–25, served by 27.6 full-time-equivalent classroom teachers. That is number 324 of 964 California agencies of the same type by enrollment.

What is the student–teacher ratio in River Islands High District?

The district-wide ratio is 18.6:1, calculated from 2024–25 enrollment and classroom-teacher FTE. Ratios vary by school and are not the same as average class size; ask individual schools about class sizes by grade.

How much does River Islands High District spend per student?

The FY 2023 federal finance survey reports $21,222 in current expenditure per pupil, including $15,269 for instruction. That ranks 120 of 914 comparable California agencies. Spending reflects local costs and student needs as well as priorities.

What is the largest high school in River Islands High District?

River Islands High reported the largest high-school enrollment in the district, with 512 students in 2024–25. Size describes the campus, not its quality.

How do I find my assigned school in River Islands High District?

Attendance zones are set by the district and can change. Use the district's official school locator or contact its enrollment office at (209) 717-6715 with your exact address. A mailing address or ZIP code alone does not determine school assignment.

Nearby school districts

Regular California districts with the closest central offices. Office distance is not a boundary comparison.