River Delta Joint Unified School District

445 Montezuma St.
Rio Vista, CA 94571-1651
(District boundaries shown in map)
4/
10
Bottom 50%
For the 2025 school year, there are 11 public schools serving 1,747 students in River Delta Joint Unified School District. This district's average testing ranking is 4/10, which is in the bottom 50% of public schools in California.
Public Schools in River Delta Joint Unified School District have an average math proficiency score of 20% (versus the California public school average of 34%), and reading proficiency score of 41% (versus the 47% statewide average).
Minority enrollment is 71% of the student body (majority Hispanic), which is less than the California public school average of 80% (majority Hispanic).

Overview

This School District
This State (CA)
# Schools
11 Schools
10,369 Schools
# Students
1,747 Students
5,826,838 Students
# Teachers
93 Teachers
268,018 Teachers
Student-Teacher Ratio
19:1
19:1

Student By Grade

District Rank

River Delta Joint Unified School District, which is ranked #1241 of all 1,910 school districts in California (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
The school district's graduation rate of 95% has increased from 90-94% over five school years.
This School District
State Average (CA)
#1196 out of 1932 school districts
(Bottom 50%)
20%
34%
40%
47%
25%
29%
(21-22)
≥95%
87%

Students by Ethnicity:

0.57
0.63
% American Indian
1%
1%
% Asian
2%
12%
% Hispanic
59%
56%
% Black
2%
5%
% White
29%
20%
% Hawaiian
1%
n/a
% Two or more races
6%
6%
All Ethnic Groups

District Revenue and Spending

The revenue/student of $17,155 in this school district is less than the state median of $19,974. The school district revenue/student has grown by 7% over four school years.
The school district's spending/student of $14,912 is less than the state median of $18,396. The school district spending/student has grown by 7% over four school years.
This School District
This State (CA)
Total Revenue
$30 MM
$116,387 MM
Spending
$26 MM
$107,188 MM
Revenue / Student
$17,155
$19,974
Spending / Student
$14,912
$18,396

Best River Delta Joint Unified School District Public Schools (2025)

School
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Mokelumne High (Continuation School)
Alternative School
(Math: <50% | Reading: <50% )
Rank:
7/
10
Top 50%
160 Courtland High School Ln.
Courtland, CA 95615
(916) 775-1771
Gr: 9-12 | 8 students Student-Teacher Ratio: 8:1
Rank: #22.
Isleton Elementary School
(Math: 40-44% | Reading: 45-49%)
Rank:
7/
10
Top 50%
412 Union St.
Isleton, CA 95641
(916) 777-6515
Gr: K-6 | 181 students Student-Teacher Ratio: 23:1 Minority enrollment: 72%
Rank: #33.
D. H. White Elementary School
(Math: 25-29% | Reading: 40-44%)
Rank:
6/
10
Top 50%
500 Elm Way
Rio Vista, CA 94571
(707) 374-5335
Gr: K-6 | 427 students Student-Teacher Ratio: 21:1 Minority enrollment: 63%
Rank: #44.
River Delta High/elementary (Alternative)
Alternative School
(Math: ≤20% | Reading: <50%)
Rank:
5/
10
Bottom 50%
525 So. Second St.
Courtland, CA 95615
(707) 374-1324
Gr: K-12 | 26 students Student-Teacher Ratio: 13:1 Minority enrollment: 58%
Rank: #55.
Rio Vista High School
(Math: 10-14% | Reading: 45-49%)
Rank:
4/
10
Bottom 50%
410 South Fourth St.
Rio Vista, CA 94571
(707) 374-6336
Gr: 9-12 | 350 students Student-Teacher Ratio: 17:1 Minority enrollment: 63%
Rank: #66.
Bates Elementary School
(Math: 11-19% | Reading: 40-49%)
Rank:
4/
10
Bottom 50%
180 Primasing Ave.
Courtland, CA 95615
(916) 775-1771
Gr: K-6 | 79 students Student-Teacher Ratio: 20:1 Minority enrollment: 99%
Rank: #77.
Walnut Grove Elementary School
(Math: 15-19% | Reading: 35-39%)
Rank:
4/
10
Bottom 50%
14181 Grove St.
Walnut Grove, CA 95690
(916) 776-1844
Gr: K-6 | 141 students Student-Teacher Ratio: 20:1 Minority enrollment: 88%
Rank: #88.
Riverview Middle School
(Math: 10-14% | Reading: 40-44%)
Rank:
4/
10
Bottom 50%
525 South Second St.
Rio Vista, CA 94571
(707) 374-2345
Gr: 7-8 | 163 students Student-Teacher Ratio: 20:1 Minority enrollment: 62%
Rank: #99.
Delta High School
(Math: ≤10% | Reading: 40-44%)
Rank:
3/
10
Bottom 50%
52810 Netherlands Ave.
Clarksburg, CA 95612
(916) 744-1714
Gr: 10-12 | 183 students Student-Teacher Ratio: 17:1 Minority enrollment: 72%
Rank: #1010.
Clarksburg Middle School
(Math: 10-14% | Reading: 25-29%)
Rank:
2/
10
Bottom 50%
52870 Netherlands Rd.
Clarksburg, CA 95612
(916) 744-1717
Gr: 7-9 | 187 students Student-Teacher Ratio: 19:1 Minority enrollment: 88%
Rank: n/an/a
River Delta Community Day
Alternative School
160 Courtland High School Ln.
Courtland, CA 95615
(916) 775-1771
Gr: 7-12 | 2 students Student-Teacher Ratio: 2:1

Frequently Asked Questions

How many schools belong to River Delta Joint Unified School District?
River Delta Joint Unified School District manages 11 public schools serving 1,747 students.
What is the rank of River Delta Joint Unified School District?
River Delta Joint Unified School District is ranked #1241 out of 1,910 school districts in California (bottom 50%) based off of combined math and reading proficiency testing data for the 2022-2023 school year.
What is the racial composition of students in River Delta Joint Unified School District?
59% of River Delta Joint Unified School District students are Hispanic, 29% of students are White, 6% of students are Two or more races, 2% of students are Asian, 2% of students are Black, 1% of students are American Indian, and 1% of students are Hawaiian.
What is the student/teacher ratio of River Delta Joint Unified School District?
River Delta Joint Unified School District has a student/teacher ratio of 19:1, which is lower than the California state average of 22:1.
What is River Delta Joint Unified School District's spending/student ratio?
The school district's spending/student of $14,912 is less than the state median of $18,396. The school district spending/student has grown by 7% over four school years.

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Quick Facts (2025)

  • District size: 11 schools
  • Grades: KG-12
  • Enrollment: 1,747 students
  • Student-Teacher Ratio: 19:1
  • Minority Enrollment: 71%
  • : ≥95% (Btm 50% in CA)
  • : Bottom 50%
  • : 20% (Btm 50%)
  • : 40% (Btm 50%)
  • : 25% (Btm 50%)
  • Source: National Center for Education Statistics (NCES), CA Dept. of Education

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