Union Elementary District (4277)

3834 S 91st Ave
Tolleson, AZ 85353-9394
(District boundaries shown in map)
3/
10
Bottom 50%

Top Rankings

Union Elementary District (4277) ranks among the top 20% of public school district in Arizona for:

Category
Attribute
Community Size
Largest student body (number of students) (Top 1%)
For the 2026-27 school year, there is 1 public preschool serving 313 students in Union Elementary District (4277).
Public Preschools in Union Elementary District (4277) have a diversity score of 0.41, which is less than the Arizona public preschool average of 0.64.
Minority enrollment is 97% of the student body (majority Hispanic), which is more than the Arizona public preschool average of 68% (majority Hispanic).

Overview

This School District
This State (AZ)
# Schools
4 Schools
849 Schools
# Students
1,630 Students
390,302 Students
# Teachers
89 Teachers
23,691 Teachers
Student-Teacher Ratio
18:1
18:1

Student By Grade

District Rank

Union Elementary District (4277), which is ranked within the bottom 50% of all 599 school districts in Arizona (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
This School District
State Average (AZ)
#453 out of 618 school districts
(Bottom 50%)
12%
34%
26%
40%
15%
24%
(2022-23)
55%
41.2%

Students by Ethnicity:

0.44
0.64
% American Indian
3%
4%
% Asian
1%
3%
% Hispanic
73%
50%
% Black
16%
6%
% White
4%
32%
% Hawaiian
1%
n/a
% Two or more races
2%
5%
All Ethnic Groups

District Revenue and Spending

The revenue/student of $10,455 in this school district is less than the state median of $11,584. The school district revenue/student has declined by 7% over four school years.
The school district's spending/student of $10,513 is less than the state median of $11,485. The school district spending/student has stayed relatively flat over four school years.
This School District
This State (AZ)
Total Revenue
$17 MM
$12,837 MM
Spending
$17 MM
$12,727 MM
Revenue / Student
$10,455
$11,584
Spending / Student
$10,513
$11,485

Best Union Elementary District (4277) Public Preschools (2026-27)

School
(Math and Reading Proficiency)
Location
Quick Facts
3834 S 91st Ave
Tolleson, AZ 85353
(623) 478-5000
Gr: PK-2 | 313 students Student-teacher ratio: 15:1 Minority enrollment: 97%

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Quick Facts (2026-27)

  • District size: 4 schools
  • Grades: PK-08
  • Enrollment: 1,630 students
  • Student-Teacher Ratio: 18:1
  • Minority Enrollment: 96%
  • : Bottom 50% in AZ
  • : 12% (Btm 50%)
  • : 26% (Btm 50%)
  • : 15% (Btm 50%)
  • Source: National Center for Education Statistics (NCES), AZ Dept. of Education

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