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Columbia Union School District

22540 Parrotts Ferry Rd.
Columbia, CA 95310-9757
(District boundaries shown in map)
5/
10
Bottom 50%
For the 2026 school year, there is 1 public school serving 450 students in Columbia Union School District. This district's average testing ranking is 5/10, which is in the bottom 50% of public schools in California.
Public School in Columbia Union School District have an average math proficiency score of 29% (versus the California public school average of 34%), and reading proficiency 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
10,356 Schools
# Students
450 Students
5,826,671 Students
# Teachers
25 Teachers
267,995 Teachers
Student-Teacher Ratio
18:1
18:1

Student By Grade

District Rank

Columbia Union School District, which is ranked #1052 of all 1,907 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%)
29%
34%
37%
47%
20-24%
29%

Students by Ethnicity:

0.49
0.63
% American Indian
3%
1%
% Asian
1%
12%
% Hispanic
20%
56%
% Black
1%
5%
% White
69%
20%
% Hawaiian
1%
n/a
% Two or more races
5%
6%
All Ethnic Groups

District Revenue and Spending

The revenue/student of $16,451 in this school district is less than the state median of $19,975. The school district revenue/student has grown by 23% over four school years.
The school district's spending/student of $14,573 is less than the state median of $18,396. The school district spending/student has grown by 11% over four school years.
This School District
This State (CA)
Total Revenue
$7 MM
$116,387 MM
Spending
$7 MM
$107,188 MM
Revenue / Student
$16,451
$19,975
Spending / Student
$14,573
$18,396

Best Columbia Union School District Public Schools (2026)

School
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Columbia Elementary School
(Math: 29% | Reading: 37%)
Rank:
5/
10
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 1,907 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 $18,396. The school district spending/student has grown by 11% over four school years.

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Quick Facts (2026)

  • 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

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