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Public school district · California

River Delta Joint Unified.Many schools. Many different stories.

Compare elementary, middle, and high schools across River Delta Joint Unified—and look beyond a single district average.

Isleton ElementaryDelta HighRio Vista HighDelta Elementary CharterWalnut Grove ElementaryBates ElementaryD. H. White ElementaryRiver Delta Joint UnifiedN ↑
7 schools mapped · Location contextOpen map →
Census district boundary
The K–12 path at a glance
Elementary5 schools
avg 29.7/1003 Needs Support, 1 Strong, +1 more
High2 schools
avg 51.9/1001 Solid, 1 Developing

Each level is scored on its own scale — elementary, middle, and high are never ranked against each other.

Stage 1 of 2

The elementary years

One school defines the top: Isleton Elementary sits 28 points clear of the field — the other 4 elementary schools are a different conversation.

0100
Strong Solid Developing Needs Support district avg state avg

46 points separate the strongest and weakest of these 5 elementary schools — the average hides more than it tells.

The strength

Isleton Elementary (59/100) holds the Strong band — 37.8% of its students exceed the state standard, against a level average of 14.5%. 1 school classifies as Strong All-Around — no weak dimension we measure.

The catch

21.5% of students are chronically absent (state: 17.9%) — chronic means missing 10% or more of the school year. Whatever the scores say, ask each school what it is doing about attendance.

Isleton Elementary
Strong All-Around
86th percentile · StrongScope Score 59/100
Delta Elementary Charter
Building Momentum · Charter
37th percentile · DevelopingScope Score 31/100
Walnut Grove Elementary
Building Momentum
20th percentile · Needs SupportScope Score 24/100

All 5 elementary schools, ranked, in the appendix →

Stage 2 of 2

The high school years

The high schools sit at the state line (51.9 vs 54.0) — the 3-point school-to-school spread is where the choice lives.

0100

All 2 high schools land within 3 points — the average is a fair summary here.

The strength

Delta High is the strongest option at 53/100 — 4.8% of its students exceed the state standard.

The catch

The suspension rate averages 5.1% against 3.3% statewide — worth a direct question on a visit.

Delta High
Building Momentum
51st percentile · SolidScope Score 53/100
Rio Vista High
Building Momentum
43rd percentile · DevelopingScope Score 51/100

High school detail in the appendix →

What it means for your family

If you're choosing a neighborhood

Compare schools at your child’s level before deciding on an address. The strongest attendance-zone candidate is Isleton Elementary at 59/100 — confirm the exact boundary with the district before the house.

If you already live here

1 of the 7 ranked schools is a charter — enrollment paths that don't depend on your address. If your zoned school sits low in the appendix below, those lotteries and applications are the levers worth the paperwork.

If your kid is enrolled now

A band is a position, not a prophecy — a school's number can move without your kid's experience moving with it. Ask your school two questions: what happens for a kid who arrives behind, and what the classroom looks like for one who arrives ahead.

The strongest-scoring run through the district:

Isleton Elementary 86th percentile · StrongScope Score 59/100Delta High 51st percentile · SolidScope Score 53/100

Top scorers at each level — not necessarily one zoned sequence. Confirm feeder patterns and enrollment zones with the district, and visit before you decide.

What this page can't see: whether a campus feels safe and glad at 8 a.m. If a path above looks workable, the next step is a visit.

River Delta Joint Unified has 7 public schools in this SchoolScope results directory. Compare schools by their primary reporting level below.

2024–25 CAASPP reporting · SchoolScope analysis. Directory coverage, not a complete inventory of every campus. Each school appears at its primary reporting level; K–8 and K–12 campuses can serve additional grades. Sources and methodology →

One district, three stages

The average changes with the journey.

Elementary schools

Explore elementary →
Lower reported resultsHigher reported results

5 comparable schools · average 29.7/100 · range 12.6–59.0

High schools

Explore high →
Lower reported resultsHigher reported results

2 comparable schools · average 51.9/100 · range 50.5–53.2

Explore River Delta Joint Unified by place.

Districts nearby

DistrictAverage scoreRanked schoolsTop schoolDistance
River Delta Joint Unifiedthis district36.0 / 1007Isleton Elementary
Elk Grove Unified49.7 / 1005Elliott Ranch Elementary11.7 mi

Averages blend every school level in a district and carry no score band. Compare a level at a time in the spreads above, then open the schools. Distances run between school-location centers.

Cities served

City pages include schools from other districts too. Check the district named on each school profile.

Patterns across the district

What kinds of schools are here?

Patterns worth exploring.

Choose a pattern to find matching schools in the lists below. Open a profile to see the underlying measures and questions to ask on a visit.

How patterns are defined →

Archetypes describe reported patterns, not school quality or fit. Available measures differ by school level.

Schools in River Delta Joint Unified

Browse by level, then compare the evidence behind each profile.

Map ↗

Elementary schools in River Delta Joint Unified · 5 schools

CompareSchoolExceededScore
Isleton Elementary
River Delta Joint Unified Strong All-Around
37.8%86th percentile · StrongScope Score 59/100
Delta Elementary Charter
River Delta Joint Unified Building Momentum
15.7%37th percentile · DevelopingScope Score 31/100
Walnut Grove Elementary
River Delta Joint Unified Building Momentum
8.5%20th percentile · Needs SupportScope Score 24/100
Bates Elementary
River Delta Joint Unified Building Momentum
4.5%13th percentile · Needs SupportScope Score 21/100
D. H. White Elementary
River Delta Joint Unified Building Momentum
6.0%2nd percentile · Needs SupportScope Score 13/100

High schools in River Delta Joint Unified · 2 schools

CompareSchoolExceededScore
Delta High
River Delta Joint Unified Building Momentum
4.8%51st percentile · SolidScope Score 53/100
Rio Vista High
River Delta Joint Unified Building Momentum
7.2%43rd percentile · DevelopingScope Score 51/100
Compare selected schools

Select two to four schools at the same level. Rankings and score bands compare each school with its own enrollment group.

District finance · FY 2024–25

Where the district's dollars go.

River Delta Joint Unified spent $22,334 per student in FY 2024–25 — close to the median California district ($20,491). About 55 cents of every dollar goes to classroom instruction.

Current expense per student

Current expense of education per unit of average daily attendance, from the district's annual SACS filing to the California Department of Education. District-wide: it includes central administration and costs never assigned to one campus. Spending is context, not a measure of school quality.

Share by function

  • Instruction55%
  • Instruction support10%
  • Student services13%
  • Administration8%
  • Buildings & maintenance14%
  • Other1%

Shares of the same current-expense total, by SACS function. Names are simplified from the filing's own categories.

The system behind the schools

The people behind the classrooms — district-grain context that never enters a school's score.

People
Teacher salary range$62,399–$111,138
Teaching staff101 · FTE
District enrollment1,874 · students
Who attends
Hispanic 56.2% · White 30.6% · Black 5.8% · Asian 0.4% · Other 7.1%
Free/reduced lunch73% · economic need indicator

CDE Form J-90 salary schedule 2024–25 · CDE enrollment (district averages)

See how the school years fit together.

Explore the next stage, then verify the schools available for your address.

These are browsing links, not a feeder path. Assignments vary by residence, program, permits, and available space.

Looking beyond River Delta Joint Unified?

Explore public, private, and early-learning options.

Know what you’re comparing.

Data source: California Department of Education · CAASPP 2024-25 · Methodology

Scores are SchoolScope's analysis of public data, not official CDE ratings. They represent one way of interpreting test results and should not be the sole basis for school decisions.

Source: CDE CAASPP 2025 · 7 schoolsMethodology · Download this data (CSV)

Free to download, CC BY 4.0 with attribution.

Frequently asked questions

How many schools are listed in River Delta Joint Unified?
This SchoolScope directory lists 7 public schools in River Delta Joint Unified with 2024–25 reporting records. This is directory coverage, not a complete campus inventory. Each school appears under its primary reporting level; a K–8 or K–12 campus may serve additional grades.
Which schools have the highest scores in River Delta Joint Unified?
Among comprehensive public schools listed here, the highest Scope Score at each primary reporting level is: Elementary: Isleton Elementary (59/100). High: Delta High (53/100). These are separate level rankings, not a single cross-level league table. A score does not establish fit or enrollment eligibility. See the methodology.
Can I compare elementary, middle, and high schools directly?
Compare schools at the same level and within the same enrollment group. Scope Score formulas and available measures differ by level. The plots show comprehensive public schools separately for each level; individual profiles explain their comparison group.
Does living in River Delta Joint Unified guarantee a particular school?
A district outline does not establish assignment to an individual school. Attendance boundaries, programs, permits, and available space can affect enrollment. Confirm the requirements directly with the district.
What does a SchoolScope pattern mean?
Archetypes summarize patterns in publicly reported academic and school-climate measures. They describe reported results, not a school’s quality or a child’s fit. Open the school profile for reporting years, missing measures, and questions to ask. Read how the patterns are defined.
Where do these results come from?
The underlying public data comes from the California Department of Education, including CAASPP reporting for 2024–25. Scope Scores and archetypes are SchoolScope calculations, not official CDE ratings. View CDE data and SchoolScope’s methodology and limitations.