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River Delta Joint Unified School District

Item: River Delta Joint Unified School District
Rating: 4
Author: Public School Review

445 Montezuma St.
Rio Vista, CA 94571-1651

( shown in map)

Bottom 50%

Tel: (707) 374-1700

www.rdusd.org

For the 2026 school year, there are 5 public elementary schools serving 854 students in River Delta Joint Unified School District. This district's average elementary is 5/10, which is in the bottom 50% of public elementary schools in California.

Public Elementary Schools in River Delta Joint Unified School District have an score of 27% (versus the California public elementary school average of 36%), and 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

7,693 Schools

# Students

1,747 Students

3,823,192 Students

# Teachers

93 Teachers

174,001 Teachers

Student-Teacher Ratio

19:1

Student By Grade

View Data

Comparison of Students By Grade Trends
Grade	River Delta Joint Unified School District	California
Kind	182	253
1	95	193
2	125	202
3	109	203
4	105	208
5	108	210
6	105	211
8	4	152
9	2	22
10	1	18
11	4	18
12	14	20

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District Rank

River Delta Joint Unified School District, which is ranked #1239 of all 1,907 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%)

View Data

Overall School District Rank Trends
Year	River Delta Joint Unified School District
2023	#1196
2022	#1205
2019	#1157
2018	#587
2017	#591
2016	#664
2015	#589
2014	#377
2013	#499
2012	#529
2011	#416

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20%

34%

View Data

Math Proficiency Trends
Year	River Delta Joint Unified School District	California
2023	20%	34%
2022	21%	33%
2019	31%	40%
2018	30%	39%
2017	32%	38%
2016	26%	37%
2015	26%	34%
2014	57%	63%
2013	58%	59%
2012	57%	59%
2011	61%	58%

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40%

47%

View Data

Reading and Language Arts Proficiency Trends
Year	River Delta Joint Unified School District	California
2022	40%	47%
2019	42%	51%
2018	30%	50%
2017	41%	48%
2016	37%	48%
2015	37%	44%
2014	52%	58%
2013	54%	57%
2012	55%	58%
2011	56%	56%
2010	48%	54%

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25%

29%

View Data

Science Proficiency Trends
Year	River Delta Joint Unified School District	California
2022	25%	29%
2021	20%	28%

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(21-22)

≥95%

87%

View Data

Graduation Rate Trends
Year	River Delta Joint Unified School District	California
2022	95%	87%
2021	92%	84%
2020	95%	85%
2019	87%	84%
2018	87%	84%
2017	92%	83%
2016	92%	83%
2015	92%	89%
2014	82%	88%
2013	87%	87%
2012	92%	86%

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Students by Ethnicity:

0.57

0.64

View Data

Comparison of Diversity Score Trends
Year	River Delta Joint Unified School District	California
2023	0.58	0.64
2022	0.58	0.63
2021	0.58	0.62
2020	0.57	0.63
2019	0.57	0.63
2018	0.56	0.64
2017	0.56	0.64
2016	0.57	0.64
2015	0.54	0.64
2014	0.57	0.65
2013	0.57	0.65
2012	0.57	0.65
2011	0.58	0.67
2010	0.57	0.67
2009	0.58	0.71
2008	0.55	0.65
2007	0.56	0.67
2006	0.55	0.66
2005	0.56	0.67
2004	0.56	0.67
2003	0.55	0.67
2002	0.54	0.67
2001	0.54	0.67
2000	0.53	0.67
1999	0.54	0.67
1998	0.53	0.67
1997	0.52	0.67
1996	0.53	0.67
1995	0.52	0.67
1994	0.52	0.67
1993	0.50	0.67
1992	0.52	0.67
1991	0.52	0.67

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% American Indian

View Data

American Indian Student Percentage Comparison Over Years (1992-2023)
Year	River Delta Joint Unified School District	California
2023	1%	1%
2022	1%	1%
2020	1%	1%
2019	1%	1%
2013	2%	1%
2012	1%	1%
2011	1%	1%
2010	1%	1%
2007	1%	2%
2005	2%	2%
2004	2%	2%
2002	1%	2%
2001	2%	2%
2000	2%	1%
1999	1%	1%
1997	1%	1%
1995	1%	1%
1994	1%	1%
1992	1%	1%

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% Asian

12%

View Data

Asian Student Percentage Comparison Over Years (1991-2023)
Year	River Delta Joint Unified School District	California
2023	2%	12%
2022	2%	12%
2021	3%	12%
2020	2%	12%
2019	2%	12%
2018	1%	11%
2017	1%	11%
2016	2%	11%
2015	3%	11%
2014	2%	11%
2013	1%	11%
2012	2%	11%
2011	2%	11%
2010	2%	11%
2009	2%	11%
2008	2%	12%
2007	3%	12%
2006	2%	12%
2005	3%	12%
2004	3%	12%
2003	5%	11%
2002	4%	11%
2001	3%	11%
2000	3%	11%
1999	4%	11%
1998	4%	11%
1997	3%	11%
1996	3%	11%
1995	3%	11%
1994	3%	11%
1993	4%	11%
1992	3%	11%
1991	5%	11%

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% Hispanic

59%

55%

View Data

Hispanic Student Percentage Comparison Over Years (1991-2023)
Year	River Delta Joint Unified School District	California
2023	57%	55%
2022	57%	56%
2021	56%	56%
2020	55%	55%
2019	55%	55%
2018	54%	54%
2017	54%	54%
2016	52%	54%
2015	43%	54%
2014	51%	53%
2013	50%	53%
2012	48%	52%
2011	48%	51%
2010	47%	50%
2009	45%	49%
2008	46%	50%
2007	44%	49%
2006	44%	48%
2005	42%	47%
2004	41%	46%
2003	41%	45%
2002	40%	44%
2001	39%	43%
2000	38%	42%
1999	38%	41%
1998	37%	40%
1997	35%	40%
1996	34%	39%
1995	35%	38%
1994	34%	37%
1993	32%	36%
1992	35%	35%
1991	33%	34%

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% Black

View Data

Black Student Percentage Comparison Over Years (1992-2023)
Year	River Delta Joint Unified School District	California
2023	3%	5%
2022	3%	5%
2021	3%	5%
2020	2%	5%
2019	2%	5%
2018	1%	6%
2017	1%	6%
2016	1%	6%
2015	3%	6%
2014	1%	6%
2013	1%	6%
2012	1%	6%
2011	2%	7%
2010	1%	7%
2009	1%	7%
2008	2%	8%
2007	2%	8%
2006	1%	8%
2005	2%	8%
2004	2%	8%
2003	1%	8%
2001	1%	8%
2000	1%	9%
1999	1%	9%
1998	1%	9%
1997	1%	9%
1996	3%	9%
1995	1%	9%
1994	2%	9%
1993	1%	9%
1992	1%	9%

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% White

29%

21%

View Data

White Student Percentage Comparison Over Years (1991-2023)
Year	River Delta Joint Unified School District	California
2023	30%	21%
2022	31%	21%
2021	33%	22%
2020	36%	23%
2019	36%	23%
2018	39%	24%
2017	39%	24%
2016	40%	24%
2015	37%	24%
2014	42%	25%
2013	43%	25%
2012	46%	26%
2011	44%	27%
2010	47%	27%
2009	47%	28%
2008	50%	29%
2007	50%	29%
2006	53%	31%
2005	51%	31%
2004	52%	32%
2003	53%	34%
2002	55%	35%
2001	55%	36%
2000	56%	37%
1999	56%	38%
1998	58%	39%
1997	60%	39%
1996	60%	40%
1995	60%	41%
1994	60%	42%
1993	63%	43%
1992	60%	44%
1991	61%	45%

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% Hawaiian

n/a

% Two or more races

View Data

Two or More Races Student Percentage Comparison Over Years (2009-2023)
Year	River Delta Joint Unified School District	California
2023	6%	6%
2022	6%	5%
2021	5%	5%
2020	4%	4%
2019	4%	4%
2018	5%	4%
2017	5%	4%
2016	5%	4%
2015	7%	3%
2014	4%	3%
2013	3%	3%
2012	2%	3%
2011	3%	2%
2010	2%	3%
2009	4%	3%

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All Ethnic Groups

District Revenue and Spending

The revenue/student of $17,155 in this school district is less than the state median of $19,975. The school district revenue/student has grown by 19% 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 10% over four school years.

This School District

This State (CA)

Total Revenue

$30 MM

$116,387 MM

View Data

Total Revenues Trends
Year	River Delta Joint Unified School District	California
2023	$30 MM	$8 MM
2022	$28 MM	$7 MM
2021	$30 MM	$8 MM
2020	$28 MM	$7 MM
2019	$32 MM	$7 MM
2018	$29 MM	$29 MM
2017	$28 MM	$26 MM
2016	$28 MM	$24 MM
2015	$25 MM	$17 MM
2014	$24 MM	$21 MM
2012	$24 MM	$19 MM
2011	$26 MM	$19 MM
2010	$25 MM	$17 MM
2009	$25 MM	$19 MM
2008	$25 MM	$19 MM
2007	$27 MM	$19 MM
2006	$22 MM	$17 MM
2005	$21 MM	$16 MM
2004	$18 MM	$16 MM
2003	$21 MM	$16 MM
2002	$19 MM	$15 MM
2001	$18 MM	$15 MM
2000	$16 MM	$13 MM
1999	$15 MM	$12 MM
1998	$14 MM	$11 MM
1997	$14 MM	$10 MM
1996	$12 MM	$9 MM
1995	$12 MM	$8 MM

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Spending

$26 MM

$107,188 MM

View Data

Total Expenditure Trends
Year	River Delta Joint Unified School District	California
2023	$26 MM	$7 MM
2022	$27 MM	$7 MM
2021	$26 MM	$7 MM
2020	$27 MM	$7 MM
2019	$27 MM	$7 MM
2018	$24 MM	$29 MM
2017	$26 MM	$24 MM
2016	$23 MM	$23 MM
2015	$25 MM	$18 MM
2014	$21 MM	$21 MM
2012	$25 MM	$19 MM
2011	$27 MM	$19 MM
2010	$25 MM	$18 MM
2009	$31 MM	$18 MM
2008	$36 MM	$19 MM
2007	$28 MM	$18 MM
2006	$21 MM	$17 MM
2005	$20 MM	$16 MM
2004	$21 MM	$17 MM
2003	$20 MM	$15 MM
2002	$18 MM	$16 MM
2001	$17 MM	$14 MM
2000	$16 MM	$13 MM
1999	$14 MM	$11 MM
1998	$15 MM	$11 MM
1997	$13 MM	$10 MM
1996	$12 MM	$8 MM
1995	$12 MM	$8 MM

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Revenue / Student

$17,155

$19,975

View Data

Average Revenue Per Student Trends
Year	River Delta Joint Unified School District	California
2023	$16,809	$15,607
2022	$14,297	$14,213
2021	$16,027	$15,669
2020	$14,297	$14,213
2019	$16,244	$14,063
2018	$12,676	$16,033
2017	$12,098	$16,692
2016	$11,864	$15,604
2015	$10,527	$10,238
2014	$10,371	$11,786
2012	$10,486	$11,929
2011	$16,276	$11,681
2010	$11,655	$10,238
2009	$11,186	$11,099
2008	$11,457	$11,762
2007	$12,033	$11,879
2006	$9,463	$10,859
2005	$8,330	$10,445
2004	$7,363	$10,566
2003	$8,258	$10,456
2002	$7,743	$9,803
2001	$7,509	$10,568
2000	$6,833	$8,943
1999	$6,214	$8,203
1998	$5,866	$7,395
1997	$5,662	$6,922
1995	$4,867	$5,953
1992	$4,494	$5,430

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Spending / Student

$14,912

$18,396

View Data

Average Expenditure Per Student Trends
Year	River Delta Joint Unified School District	California
2023	$14,611	$13,914
2022	$13,465	$13,602
2021	$13,931	$13,970
2020	$13,465	$13,602
2019	$13,981	$13,522
2018	$10,568	$16,124
2017	$10,877	$15,588
2016	$9,583	$14,779
2015	$10,500	$10,739
2014	$9,211	$11,804
2012	$10,675	$12,155
2011	$16,761	$11,509
2010	$11,625	$10,739
2009	$14,141	$10,975
2008	$16,456	$11,678
2007	$12,831	$11,317
2006	$8,767	$10,926
2005	$8,119	$10,789
2004	$8,571	$11,073
2003	$8,165	$10,210
2002	$7,452	$10,600
2001	$7,051	$10,007
2000	$6,610	$9,131
1999	$5,889	$7,911
1998	$6,239	$7,592
1997	$5,351	$6,759
1995	$4,985	$6,033
1992	$4,357	$5,588

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Best River Delta Joint Unified School District Public Elementary Schools (2026)

School
(Math and Reading Proficiency)

Location

Quick Facts

Rank: #11.

Isleton Elementary School

(Math: 40-44% | Reading: 45-49%)
:

Top 50%

Add to Compare

412 Union St.
Isleton, CA 95641
(916) 777-6515

Gr: K-6 | 181 students Student-teacher ratio: 23:1 Minority enrollment: 72%

Rank: #22.

D. H. White Elementary School

(Math: 25-29% | Reading: 40-44%)
:

Top 50%

Add to Compare

500 Elm Way
Rio Vista, CA 94571
(707) 374-5335

Gr: K-6 | 427 students Student-teacher ratio: 21:1 Minority enrollment: 63%

Rank: #33.

River Delta High/elementary (Alternative)

Alternative School

(Math: ≤20% | Reading: <50%)
:

Bottom 50%

Add to Compare

525 So. Second St.
Courtland, CA 95615
(707) 374-1324

Gr: K-12 | 26 students Student-teacher ratio: 13:1 Minority enrollment: 58%

Rank: #44.

Bates Elementary School

(Math: 11-19% | Reading: 40-49%)
:

Bottom 50%

Add to Compare

180 Primasing Ave.
Courtland, CA 95615
(916) 775-1771

Gr: K-6 | 79 students Student-teacher ratio: 20:1 Minority enrollment: 99%

Rank: #55.

Walnut Grove Elementary School

(Math: 15-19% | Reading: 35-39%)
:

Bottom 50%

Add to Compare

14181 Grove St.
Walnut Grove, CA 95690
(916) 776-1844

Gr: K-6 | 141 students Student-teacher ratio: 20:1 Minority enrollment: 88%

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Quick Facts (2026)

District size: 11 schools
Grades: K-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