Columbia Union School District

Item: Columbia Union School District
Rating: 5
Author: Public School Review

22540 Parrotts Ferry Rd.
Columbia, CA 95310-9757

( shown in map)

Bottom 50%

Tel: (209) 532-0202

www.cusd49.com

For the 2025-26 school year, there is 1 public school serving 450 students in Columbia Union School District. This district's average is 5/10, which is in the bottom 50% of public schools in California.

Public School in Columbia Union School District have an score of 29% (versus the California public school average of 34%), and score of 37% (versus the 47% statewide average).

Minority enrollment is 31% 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

1 School

10,360 Schools

# Students

450 Students

5,825,797 Students

# Teachers

25 Teachers

267,978 Teachers

Student-Teacher Ratio

18:1

Student By Grade

View Data

Comparison of Students By Grade Trends
Grade	Columbia Union School District	California
Kind	74	254
1	49	193
2	48	202
3	63	203
4	48	207
5	43	209
6	42	211
7	48	214
8	35	215

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District Rank

Columbia Union School District, which is ranked #1052 of all 1,908 school districts in California (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.

This School District

State Average (CA)

#1020 out of 1932 school districts
(Bottom 50%)

View Data

Overall School District Rank Trends
Year	Columbia Union School District
2023	#1020
2022	#1162
2021	#824
2019	#1155
2018	#563
2017	#541
2016	#425
2015	#425
2013	#176
2012	#321
2011	#325

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29%

34%

View Data

Math Proficiency Trends
Year	Columbia Union School District	California
2023	29%	34%
2022	23%	33%
2021	22%	34%
2019	32%	40%
2018	31%	39%
2017	33%	38%
2016	39%	37%
2015	40%	34%
2013	72%	59%
2012	62%	59%
2011	61%	58%

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37%

47%

View Data

Reading and Language Arts Proficiency Trends
Year	Columbia Union School District	California
2022	37%	47%
2021	31%	49%
2019	41%	51%
2018	31%	50%
2017	42%	48%
2016	45%	48%
2015	40%	44%
2013	69%	57%
2012	65%	58%
2011	62%	56%
2010	64%	54%

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20-24%

29%

Students by Ethnicity:

0.49

0.63

View Data

Comparison of Diversity Score Trends
Year	Columbia Union School District	California
2023	0.49	0.64
2022	0.44	0.63
2021	0.52	0.62
2020	0.44	0.63
2019	0.44	0.63
2018	0.40	0.64
2017	0.40	0.64
2016	0.40	0.64
2015	0.27	0.64
2014	0.29	0.65
2013	0.29	0.65
2012	0.28	0.65
2011	0.28	0.67
2010	0.30	0.67
2009	0.35	0.71
2008	0.24	0.65
2007	0.30	0.67
2006	0.32	0.66
2005	0.37	0.67
2004	0.32	0.67
2003	0.32	0.67
2002	0.38	0.67
2001	0.36	0.67
2000	0.37	0.67
1999	0.29	0.67
1998	0.27	0.67
1997	0.32	0.67
1996	0.27	0.67
1995	0.14	0.67
1994	0.16	0.67
1993	0.11	0.67
1992	0.13	0.67
1991	0.05	0.67

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% American Indian

View Data

American Indian Student Percentage Comparison Over Years (1989-2023)
Year	Columbia Union School District	California
2023	4%	1%
2022	2%	1%
2020	3%	1%
2019	3%	1%
2018	1%	1%
2017	1%	1%
2016	1%	1%
2015	1%	1%
2014	2%	1%
2013	3%	1%
2012	2%	1%
2010	1%	1%
2009	2%	1%
2008	1%	1%
2007	4%	2%
2006	6%	1%
2005	7%	2%
2004	6%	2%
2003	5%	2%
2002	7%	2%
2001	8%	2%
2000	10%	1%
1999	8%	1%
1998	5%	1%
1997	7%	1%
1996	6%	1%
1994	3%	1%
1989	1%	1%

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% Asian

12%

View Data

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

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% Hispanic

20%

56%

View Data

Hispanic Student Percentage Comparison Over Years (1991-2023)
Year	Columbia Union School District	California
2023	18%	55%
2022	17%	56%
2021	20%	56%
2020	15%	55%
2019	15%	55%
2018	10%	54%
2017	10%	54%
2016	8%	54%
2015	9%	54%
2014	9%	53%
2013	9%	53%
2012	9%	52%
2011	10%	51%
2010	10%	50%
2009	6%	49%
2008	7%	50%
2007	8%	49%
2006	8%	48%
2005	8%	47%
2004	7%	46%
2003	9%	45%
2002	11%	44%
2001	9%	43%
2000	9%	42%
1999	5%	41%
1998	8%	40%
1997	8%	40%
1996	7%	39%
1995	5%	38%
1994	5%	37%
1993	6%	36%
1992	6%	35%
1991	2%	34%

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% Black

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Black Student Percentage Comparison Over Years (1999-2023)
Year	Columbia Union School District	California
2023	2%	5%
2022	2%	5%
2021	2%	5%
2020	1%	5%
2019	1%	5%
2018	2%	6%
2017	2%	6%
2016	3%	6%
2015	1%	6%
2014	1%	6%
2013	2%	6%
2012	2%	6%
2011	2%	7%
2010	1%	7%
2009	1%	7%
2008	2%	8%
2007	3%	8%
2006	3%	8%
2005	3%	8%
2004	3%	8%
2003	2%	8%
2002	2%	8%
2001	2%	8%
2000	2%	9%
1999	1%	9%

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% White

69%

20%

View Data

White Student Percentage Comparison Over Years (1991-2023)
Year	Columbia Union School District	California
2023	69%	21%
2022	73%	21%
2021	66%	22%
2020	73%	23%
2019	73%	23%
2018	76%	24%
2017	76%	24%
2016	77%	24%
2015	85%	24%
2014	84%	25%
2013	84%	25%
2012	85%	26%
2011	85%	27%
2010	84%	27%
2009	80%	28%
2008	87%	29%
2007	83%	29%
2006	81%	31%
2005	79%	31%
2004	82%	32%
2003	82%	34%
2002	78%	35%
2001	79%	36%
2000	78%	37%
1999	84%	38%
1998	85%	39%
1997	82%	39%
1996	85%	40%
1995	92%	41%
1994	91%	42%
1993	94%	43%
1992	93%	44%
1991	97%	45%

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% Hawaiian

n/a

View Data

Native Hawaiian or Pacific Islander Student Percentage Comparison Over Years (2009-2011)
Year	Columbia Union School District	California
2011	1%	1%
2010	1%	1%
2009	1%	1%

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% Two or more races

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Two or More Races Student Percentage Comparison Over Years (2009-2023)
Year	Columbia Union School District	California
2023	4%	6%
2022	3%	5%
2021	7%	5%
2020	5%	4%
2019	5%	4%
2018	9%	4%
2017	9%	4%
2016	9%	4%
2015	1%	3%
2014	2%	3%
2013	1%	3%
2012	1%	3%
2011	1%	2%
2010	1%	3%
2009	8%	3%

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All Ethnic Groups

District Revenue and Spending

The revenue/student of $16,451 in this school district is less than the state median of $19,978. The school district revenue/student has stayed relatively flat over four school years.

The school district's spending/student of $14,573 is less than the state median of $18,399. The school district spending/student has stayed relatively flat over four school years.

This School District

This State (CA)

Total Revenue

$7 MM

$116,387 MM

View Data

Total Revenues Trends
Year	Columbia Union School District	California
2023	$7 MM	$8 MM
2022	$6 MM	$7 MM
2021	$7 MM	$8 MM
2020	$6 MM	$7 MM
2019	$6 MM	$7 MM
2018	$6 MM	$29 MM
2017	$6 MM	$26 MM
2016	$6 MM	$24 MM
2015	$5 MM	$17 MM
2014	$5 MM	$21 MM
2012	$5 MM	$19 MM
2011	$5 MM	$19 MM
2010	$5 MM	$17 MM
2009	$6 MM	$19 MM
2008	$6 MM	$19 MM
2007	$6 MM	$19 MM
2006	$26 MM	$17 MM
2005	$5 MM	$16 MM
2004	$6 MM	$16 MM
2003	$4 MM	$16 MM
2002	$4 MM	$15 MM
2001	$4 MM	$15 MM
2000	$3 MM	$13 MM
1999	$3 MM	$12 MM
1998	$3 MM	$11 MM
1997	$3 MM	$10 MM
1996	$3 MM	$9 MM
1995	$3 MM	$8 MM

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Spending

$7 MM

$107,188 MM

View Data

Total Expenditure Trends
Year	Columbia Union School District	California
2023	$7 MM	$7 MM
2022	$6 MM	$7 MM
2021	$7 MM	$7 MM
2020	$6 MM	$7 MM
2019	$6 MM	$7 MM
2018	$6 MM	$29 MM
2017	$6 MM	$24 MM
2016	$5 MM	$23 MM
2015	$6 MM	$18 MM
2014	$5 MM	$21 MM
2012	$5 MM	$19 MM
2011	$5 MM	$19 MM
2010	$6 MM	$18 MM
2009	$6 MM	$18 MM
2008	$7 MM	$19 MM
2007	$14 MM	$18 MM
2006	$14 MM	$17 MM
2005	$6 MM	$16 MM
2004	$6 MM	$17 MM
2003	$4 MM	$15 MM
2002	$4 MM	$16 MM
2001	$4 MM	$14 MM
2000	$3 MM	$13 MM
1999	$3 MM	$11 MM
1998	$3 MM	$11 MM
1997	$3 MM	$10 MM
1996	$3 MM	$8 MM
1995	$2 MM	$8 MM

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Revenue / Student

$16,451

$19,978

View Data

Average Revenue Per Student Trends
Year	Columbia Union School District	California
2023	$16,941	$15,607
2022	$13,325	$14,213
2021	$17,097	$15,669
2020	$13,325	$14,213
2019	$12,567	$14,063
2018	$12,093	$16,033
2017	$11,100	$16,692
2016	$11,481	$15,604
2015	$8,953	$10,238
2014	$8,766	$11,786
2012	$8,746	$11,929
2011	$8,592	$11,681
2010	$8,480	$10,238
2009	$8,948	$11,099
2008	$9,526	$11,762
2007	$9,896	$11,879
2006	$47,064	$10,859
2005	$9,292	$10,445
2004	$11,846	$10,566
2003	$7,484	$10,456
2002	$8,133	$9,803
2001	$7,117	$10,568
2000	$6,191	$8,943
1999	$6,796	$8,203
1998	$6,621	$7,395
1997	$5,245	$6,922
1995	$4,621	$5,953
1992	$4,634	$5,430

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Spending / Student

$14,573

$18,399

View Data

Average Expenditure Per Student Trends
Year	Columbia Union School District	California
2023	$15,007	$13,914
2022	$13,111	$13,602
2021	$15,145	$13,970
2020	$13,111	$13,602
2019	$12,760	$13,522
2018	$11,184	$16,124
2017	$10,780	$15,588
2016	$10,188	$14,779
2015	$9,894	$10,739
2014	$8,341	$11,804
2012	$8,708	$12,155
2011	$8,700	$11,509
2010	$9,371	$10,739
2009	$9,831	$10,975
2008	$11,241	$11,678
2007	$25,361	$11,317
2006	$26,082	$10,926
2005	$11,719	$10,789
2004	$10,874	$11,073
2003	$7,156	$10,210
2002	$7,510	$10,600
2001	$7,379	$10,007
2000	$5,998	$9,131
1999	$7,087	$7,911
1998	$6,090	$7,592
1997	$5,196	$6,759
1995	$4,320	$6,033
1992	$4,435	$5,588

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Best Columbia Union School District Public Schools (2025-26)

School
(Math and Reading Proficiency)

Location

Quick Facts

Rank: #11.

Columbia Elementary School

(Math: 29% | Reading: 37%)
:

Bottom 50%

22540 Parrotts Ferry Rd.
Columbia, CA 95310
(209) 533-7700

Gr: K-8 | 450 students Student-teacher ratio: 18:1 Minority enrollment: 31%

Frequently Asked Questions

How many schools belong to Columbia Union School District?

Columbia Union School District manages 1 public schools serving 450 students.

What is the rank of Columbia Union School District?

Columbia Union School District is ranked #1052 out of 1,908 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 Columbia Union School District?

69% of Columbia Union School District students are White, 20% of students are Hispanic, 5% of students are Two or more races, 3% of students are American Indian, 1% of students are Asian, 1% of students are Black, and 1% of students are Hawaiian.

What is the student/teacher ratio of Columbia Union School District?

Columbia Union School District has a student/teacher ratio of 18:1, which is lower than the California state average of 22:1.

What is Columbia Union School District's spending/student ratio?

The school district's spending/student of $14,573 is less than the state median of $18,399. The school district spending/student has stayed relatively flat over four school years.

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Quick Facts (2025-26)

District size: 1 school
Grades: K-08
Enrollment: 450 students
Student-Teacher Ratio: 18:1
Minority Enrollment: 31%
: Bottom 50% in CA
: 29% (Top 50%)
: 37% (Btm 50%)
: 20-24% (Btm 50%)
Source: National Center for Education Statistics (NCES), CA Dept. of Education