Top Rankings
Columbia Union School District ranks among the top 20% of public school district in California for:
Category
Attribute
Student Attention
Lowest student-teacher ratio (Top 1%)
For the 2026-27 school year, there is 1 public school serving 464 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 35%), 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
10,323 Schools
# Students
464 Students
5,788,587 Students
# Teachers
27 Teachers
267,491 Teachers
Student-Teacher Ratio
17:1
17:1
Student By Grade
District Rank
Columbia Union School District, which is ranked #1052 of all 1,903 school districts in California (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
Overall District Rank
#1020 out of 1932 school districts
(Bottom 50%)
(Bottom 50%)
Showing 2012–2023. View full 14-year historical data
Math Test Scores (% Proficient)
29%
34%
Showing 2012–2023. View full 14-year historical data
Reading/Language Arts Test Scores (% Proficient)
37%
47%
Showing 2011–2022. View full 13-year historical data
Science Test Scores (% Proficient)
20-24%
29%
Chronically Absent Students
(2022-23)40%
27.7%
Students by Ethnicity:
Diversity Score
0.48
0.63
Showing 2014–2023. View full 36-year historical data
% American Indian
3%
1%
Showing 2013–2023. View full 35-year historical data
% Asian
1%
12%
Showing 2014–2023. View full 35-year historical data
% Hispanic
21%
56%
Showing 2014–2023. View full 36-year historical data
% Black
1%
5%
Showing 2014–2023. View full 34-year historical data
% White
69%
20%
Showing 2014–2023. View full 36-year historical data
% Hawaiian
n/a
n/a
% Two or more races
5%
6%
Showing 2014–2023. View full 15-year historical data
All Ethnic Groups
District Revenue and Spending
The revenue/student of $17,026 in this school district is less than the state median of $26,022. The school district revenue/student has grown by 13% over four school years.
The school district's spending/student of $14,847 is less than the state median of $22,604. The school district spending/student has stayed relatively flat over four school years.
Total Revenue
$8 MM
$150,628 MM
Showing 2014–2023. View full 34-year historical data
Spending
$7 MM
$130,845 MM
Showing 2014–2023. View full 34-year historical data
Revenue / Student
$17,026
$26,022
Showing 2014–2023. View full 34-year historical data
Spending / Student
$14,847
$22,604
Showing 2014–2023. View full 34-year historical data
Best Columbia Union School District Public Schools (2026-27)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Columbia Elementary School
(Math: 29% | Reading: 37%)
Rank:
Rank:
5/
Bottom 50%10
22540 Parrotts Ferry Rd.
Columbia, CA 95310
(209) 533-7700
Columbia, CA 95310
(209) 533-7700
Gr: K-8 | 464 students Student-teacher ratio: 17:1 Minority enrollment: 31%
Frequently Asked Questions
How many schools belong to Columbia Union School District?
Columbia Union School District manages 1 public schools serving 464 students.
What is the rank of Columbia Union School District?
Columbia Union School District is ranked #1052 out of 1,903 school districts in California (bottom 50%) based off of combined math and reading proficiency testing data for the 2022-2023 school year. This district ranks in the top 20% of California school districts for: Lowest student-teacher ratio (Top 1%)
What is the racial composition of students in Columbia Union School District?
69% of Columbia Union School District students are White, 21% of students are Hispanic, 5% of students are Two or more races, 3% of students are American Indian, 1% of students are Asian, and 1% of students are Black.
What is the student/teacher ratio of Columbia Union School District?
Columbia Union School District has a student/teacher ratio of 17:1, 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 $14,847 is less than the state median of $22,604. The school district spending/student has stayed relatively flat over four school years.
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