Top Rankings
River Delta Joint Unified School District ranks among the top 20% of public school district in California for:
Category
Attribute
Graduation Rate
Highest graduation rate (Top 10%)
For the 2025 school year, there are 5 public elementary schools serving 854 students in River Delta Joint Unified School District. This district's average elementary testing ranking is 6/10, which is in the top 50% of public elementary schools in California.
Public Elementary Schools in River Delta Joint Unified School District have an average math proficiency score of 28% (versus the California public elementary school average of 35%), and reading proficiency score of 43% (versus the 45% statewide average).
Minority enrollment is 72% of the student body (majority Hispanic), which is less than the California public elementary school average of 79% (majority Hispanic).
Overview
This School District
This State (CA)
# Schools
11 Schools
7,700 Schools
# Students
1,747 Students
3,822,920 Students
# Teachers
93 Teachers
174,006 Teachers
Student : Teacher Ratio
19:1
19:1
District Rank
River Delta Joint Unified School District, which is ranked #1132 of all 1,925 school districts in California (based off of combined math and reading proficiency testing data) for the 2021-2022 school year.
The school district's graduation rate of 95% has increased from 90-94% over five school years.
Overall District Rank
#1205 out of 1941 school districts
(Bottom 50%)
(Bottom 50%)

Math Test Scores (% Proficient)
21%
33%

Reading/Language Arts Test Scores (% Proficient)
40%
47%

Science Test Scores (% Proficient)
25%
29%

Graduation Rate
≥95%
87%

Students by Ethnicity:
Diversity Score
0.57
0.64
# American Indian Students
11 Students
16,785 Students
% American Indian Students
1%
1%
# Asian Students
30 Students
454,357 Students
% Asian Students
2%
12%
# Hispanic Students
1,037 Students
2,114,366 Students
% Hispanic Students
59%
55%
# Black Students
44 Students
189,461 Students
% Black Students
2%
5%
# White Students
501 Students
787,389 Students
% White Students
29%
21%
# Hawaiian Students
12 Students
15,077 Students
% Hawaiian Students
1%
n/a
# Two or more races Students
112 Students
240,557 Students
% of Two or more races Students
6%
6%
Students by Grade:
# Students in PK Grade:
-
83
# Students in K Grade:
182
519,574
# Students in 1st Grade:
95
396,601
# Students in 2nd Grade:
125
414,466
# Students in 3rd Grade:
109
416,628
# Students in 4th Grade:
105
426,360
# Students in 5th Grade:
108
430,582
# Students in 6th Grade:
105
432,936
# Students in 7th Grade:
154
312,207
# Students in 8th Grade:
132
312,649
# Students in 9th Grade:
161
44,929
# Students in 10th Grade:
148
37,487
# Students in 11th Grade:
169
37,249
# Students in 12th Grade:
154
41,169
# Ungraded Students:
-
-
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.
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 Elementary Schools (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
River Delta High/elementary (Alternative)
Alternative School
(Math: <50% | Reading: <50%)
Rank:
Rank:
8/
Top 30%10
525 So. Second St.
Courtland, CA 95615
(707) 374-1324
Courtland, CA 95615
(707) 374-1324
Grades: K-12
| 26 students
Rank: #22.
Isleton Elementary School
(Math: 35-39% | Reading: 45-49%)
Rank:
Rank:
7/
Top 50%10
412 Union St.
Isleton, CA 95641
(916) 777-6515
Isleton, CA 95641
(916) 777-6515
Grades: K-6
| 181 students
Rank: #33.
D. H. White Elementary School
(Math: 25-29% | Reading: 40-44%)
Rank:
Rank:
6/
Top 50%10
500 Elm Way
Rio Vista, CA 94571
(707) 374-5335
Rio Vista, CA 94571
(707) 374-5335
Grades: K-6
| 427 students
Rank: #44.
Bates Elementary School
(Math: 20-29% | Reading: 40-49%)
Rank:
Rank:
5/
Bottom 50%10
180 Primasing Ave.
Courtland, CA 95615
(916) 775-1771
Courtland, CA 95615
(916) 775-1771
Grades: K-6
| 79 students
Rank: #55.
Walnut Grove Elementary School
(Math: 20-24% | Reading: 35-39%)
Rank:
Rank:
5/
Bottom 50%10
14181 Grove St.
Walnut Grove, CA 95690
(916) 776-1844
Walnut Grove, CA 95690
(916) 776-1844
Grades: K-6
| 141 students
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