Top Rankings
J O Combs Unified School District (4445) 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 are 4 public preschools serving 1,791 students in J O Combs Unified School District (4445). This district's average pre testing ranking is 5/10, which is in the bottom 50% of public pre schools in Arizona.
Public Preschools in J O Combs Unified School District (4445) have an average math proficiency score of 24% (versus the Arizona public pre school average of 36%), and reading proficiency score of 29% (versus the 40% statewide average).
Minority enrollment is 52% of the student body (majority Hispanic), which is less than the Arizona public preschool average of 68% (majority Hispanic).
Overview
This School District
This State (AZ)
# Schools
10 Schools
849 Schools
# Students
3,934 Students
390,302 Students
# Teachers
198 Teachers
23,691 Teachers
Student-Teacher Ratio
20:1
20:1
Student By Grade
District Rank
J O Combs Unified School District (4445), 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.
The school district's graduation rate of 80% has decreased from 91% over five school years.
Overall District Rank
#277 out of 618 school districts
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
27%
34%
Reading/Language Arts Test Scores (% Proficient)
33%
40%
Science Test Scores (% Proficient)
22%
24%
Graduation Rate
80%
77%
Chronically Absent Students
(2022-23)43.2%
41.2%
Students by Ethnicity:
Diversity Score
0.61
0.64
% American Indian
2%
4%
% Asian
1%
3%
% Hispanic
39%
50%
% Black
4%
6%
% White
49%
32%
% Hawaiian
1%
n/a
% Two or more races
4%
5%
All Ethnic Groups
District Revenue and Spending
The revenue/student of $11,951 is higher than the state median of $11,584. The school district revenue/student has grown by 30% over four school years.
The school district's spending/student of $11,928 is higher than the state median of $11,485. The school district spending/student has grown by 11% over four school years.
Total Revenue
$47 MM
$12,837 MM
Spending
$47 MM
$12,727 MM
Revenue / Student
$11,951
$11,584
Spending / Student
$11,928
$11,485
Best J O Combs Unified School District (4445) Public Preschools (2026-27)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Jack Harmon Elementary School
(Math: 28% | Reading: 35%)
Rank:
Rank:
6/
Top 50%10
39315 N Cortona Dr
San Tan Valley, AZ 85140
(480) 882-3500
San Tan Valley, AZ 85140
(480) 882-3500
Gr: PK-6 | 382 students Student-teacher ratio: 18:1 Minority enrollment: 55%
Rank: #22.
Ranch Elementary School
(Math: 31% | Reading: 31%)
Rank:
Rank:
5/
Bottom 50%10
43521 N Kenworthy Rd
San Tan Valley, AZ 85140
(480) 882-3530
San Tan Valley, AZ 85140
(480) 882-3530
Gr: PK-6 | 509 students Student-teacher ratio: 24:1 Minority enrollment: 44%
Rank: #33.
Kathryn Sue Simonton Elementary School
(Math: 25% | Reading: 25%)
Rank:
Rank:
4/
Bottom 50%10
40300 N Simonton Blvd
San Tan Valley, AZ 85140
(480) 987-5330
San Tan Valley, AZ 85140
(480) 987-5330
Gr: PK-6 | 384 students Student-teacher ratio: 19:1 Minority enrollment: 50%
Rank: #44.
Ellsworth Elementary School
(Math: 15% | Reading: 25%)
Rank:
Rank:
3/
Bottom 50%10
38454 N Carolina Ave
San Tan Valley, AZ 85140
(480) 882-3520
San Tan Valley, AZ 85140
(480) 882-3520
Gr: PK-6 | 516 students Student-teacher ratio: 17:1 Minority enrollment: 59%
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