Total enrollment
1,705
-165 (-9%) vs SY 2020-21
11 schools in River Delta Joint Unified
California · 1,705 students · 5 cities
Within River Delta Joint Unified, 11 public K-12 schools serve about 1,705 students, an average of 155 per school.
4-year change in River Delta Joint Unified
SY 2020-21 vs SY 2024-25School count
11
0 (0%) vs SY 2020-21
Source: NCES Common Core of Data, enrollment-weighted demographic averages
How River Delta Joint Unified ranks
Among districts| Measure | This district | In California | In the US |
|---|---|---|---|
| State test proficiency ranked highest first | 25.1% | #464 of 534 | N/A |
| Enrollment ranked largest first | 1,705 | #456 of 587 | #4,983 of 9,234 |
| Number of schools ranked most first | 11 | #219 of 587 | N/A |
| Students per teacher ranked fewest first | 18.1:1 | #51 of 587 | #7,776 of 9,044 |
| Free or reduced-price lunch share ranked highest first | 77.8% | #176 of 587 | #1,365 of 8,164 |
| Diversity index ranked most diverse first | 55.9% | #250 of 530 | #2,205 of 6,853 |
Districts need at least 2 schools and 500 students to be ranked. Test proficiency is ranked within the state only, since each state gives a different test. Each rank links to the full list.
Inside River Delta Joint Unified
State test results across the district's 7 scored schools run from Isleton Elementary at 54.3% proficient to Clarksburg Middle at 11.6%, a gap of 42.7 points. That is the 112th widest gap among 458 California districts with four or more scored schools.
Since 2017-18, the 11 district schools that reported both years went from 1,905 to 1,705 students (down 10%) and from 98 to 94 full-time teachers (down 4%), as of 2024-25.
Proficient is the average share of students meeting the state standard across each school's state tests in 2023-24 and 2024-25; schools with fewer than 100 students and schools serving specialized populations are left out. Staffing figures come from the NCES Common Core of Data and count only schools that reported students and teachers in both years.
| Name | City | Level | Grades | Enrollment |
|---|---|---|---|---|
| D. H. White Elementary | Rio Vista | Elementary | KG-06 | 432 |
| Rio Vista High | Rio Vista | High | 09-12 | 317 |
| Delta High | Clarksburg | High | 10-12 | 196 |
| Isleton Elementary | Isleton | Elementary | KG-06 | 188 |
| Clarksburg Middle | Clarksburg | Middle | 07-09 | 171 |
| Riverview Middle | Rio Vista | Middle | 07-08 | 160 |
| Walnut Grove Elementary | Walnut Grove | Elementary | KG-06 | 131 |
| Bates Elementary | Courtland | Elementary | KG-06 | 82 |
| River Delta High/Elementary (Alternative) | Rio Vista | Combined | KG-12 | 18 |
| Mokelumne High (Continuation) | Courtland | High | 09-12 | 8 |
| River Delta Community Day | Courtland | High | 07-12 | 2 |
About River Delta Joint Unified
River Delta Joint Unified is a low-population California school district running 11 schools with combined enrollment near 1,705.
On the level-by-level breakdown, River Delta Joint Unified consists of 4 elementary, 2 middle, 4 high schools, and 1 combined or other.
Average enrollment per school in River Delta Joint Unified is about 155, lower than the California average of roughly 578.
Looking at the last 4 years. Across the same 4-year window, public-school enrollment decreased 9%: 1,870 students in SY 2020-21 versus 1,705 in SY 2024-25.
In the discussion threads here, the community for River Delta Joint Unified discusses sports rivalries, cross-district programs, and shared facilities. Anyone with firsthand knowledge of these schools is welcome to weigh in.