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SCHOOL COMMUNITY·FLORENCE UNIFIED SCHOOL DISTRICT (4437)·NCES 040292002436

Copper Basin

28682 N MAIN ST, San Tan Valley, AZ 85143 · (480) 888-7500 · Pinal County
GRADES PK–08ELEMENTARY21-SUBURBREGULAR SCHOOL557 STUDENTS
D
allk12 Grade
Scored higher than 7% of Arizona public elementary schools
  • DTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • ·Beats expectations Not available for this school, so the grade uses the other parts.
  • FThree-year trend Change in reading and math proficiency over the last three test years.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Arizona public elementary schools

Enrollment
557
Elementary
DISTRICT 591 · STATE 451
Student : Teacher
16.1:1
35 FTE teachers
DISTRICT 16.4:1 · STATE 17.0:1
Free / Reduced Lunch
,
Title I proxy
STATE 95%
Community
6
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Pre-K61%
Kindergarten377%
Grade 15911%
Grade 26111%
Grade 36912%
Grade 4478%
Grade 56512%
Grade 67013%
Grade 76812%
Grade 87213%
Ungraded31%

This year's kindergarten class (37) is 49% smaller than its 8th grade class (72).

Student demographics
64%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 64% · STATE 65% · US 70%
White
20036%
DISTRICT 40% · STATE 33% · US 43%
Hispanic
26447%
DISTRICT 43% · STATE 48% · US 30%
Black
407%
DISTRICT 7% · STATE 6% · US 15%
Asian
31%
DISTRICT 1% · STATE 3% · US 6%
Two+
295%
DISTRICT 5% · STATE 4% · US 5%
Native American
163%
DISTRICT 2% · STATE 5% · US 1%
Pacific Islander
51%
DISTRICT 1% · STATE 0% · US 0%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
27650%
Female
28150%

Discussions

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Test scores

AASA 2024-25 . % Passing
Math
14.0%
AZ avg 37.8% . -17.0pp since 2017

What this means: On the AASA, Arizona's statewide test, about 14 of every 100 students at this school do math at grade level. The Arizona average is about 38 of 100. Math scores are down about 17 points since 2017.

AASA results by year

School yearEnglish Language ArtsMath
2024-25N/A14.0%
2023-242.0%15.0%
2022-2320.0%12.0%
2021-2224.0%2.0%
2020-2124.0%16.0%
2018-1927.0%26.0%
2017-1831.0%31.0%
% Passing, all students and all tested grades.
Source: AASA. All students, all grades. See all years and grades →

Where Copper Basin ranks

Among elementary schools
MeasureThis schoolIn ArizonaIn Pinal County
Math proficiency
ranked highest first
14.0%#883 of 1,072
▼ 21
#39 of 54
▼ 1
Reading proficiency
ranked highest first
2.0%#1,038 of 1,072
▼ 160
#53 of 54
▼ 13
3-year test score change
ranked biggest drop first
-11.5pp#54 of 930#4 of 44
Enrollment
ranked largest first
557#399 of 1,223#21 of 62
Students per teacher
ranked fewest first
16.1:1#424 of 991#19 of 53
Diversity index
ranked most diverse first
63.8%#170 of 1,007#14 of 53
Enrollment change since 2017-18
ranked steepest decline first
-16.4%#384 of 721#18 of 29
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
557
-59 (-10%) vs 2020
-35% since 2010-11, when it was 861
Student : Teacher
16.1:1
was 18.1:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2555734.516.1:1N/A
2023-2455837.514.9:1N/A
2022-236403717.3:159% (377)
2020-216163418.1:1N/A
2017-1866634.819.1:156% (372)
2015-167103222.2:136% (258)
2010-118614917.6:150% (427)
Source: NCES Common Core of Data. Rows are the federal collections on file for Copper Basin.

Since 2017-18: students down 16% (666 to 557); teachers down 1% (34.8 to 34.5).

About Copper Basin

Copper Basin is a medium-sized elementary school in San Tan Valley, Arizona, administered by Florence Unified School District (4437). Enrollment is 557 students in 2024-25, and the school serves pre-K through 8. Against the 451-student average for elementary schools in Arizona, enrollment here is 24% higher.

Enrollment across the 14 schools in Florence Unified School District (4437) totals 8,731 students.

Copper Basin has no majority group; Hispanic students are the largest, at 47%. Smaller groups are 36% White, 7% Black, 5% multiracial, and 3% Native American. County-wide, 30% of Pinal County residents are Hispanic. The school's diversity index is 64%, meaning two students picked at random have a 64% chance of belonging to different racial or ethnic groups.

Federal staffing data show 34.5 full-time-equivalent teachers at Copper Basin and a ratio of 16.1:1. This ratio sits 0.8 below the 17.0:1 average for elementary schools in Arizona.

allk12 grades Copper Basin a D. The grade compares the school only with Arizona public elementary schools, because each state gives its own test.

Recent Census Bureau figures for Pinal County show that the median household income is $80,266, 23% of adults hold a bachelor's degree or higher, and about 8% of residents live below the federal poverty line. Copper Basin is one of 155 public schools in the county.

Walker Butte Middle School is located about 1.7 miles from Copper Basin. Around the school, at least 8 other public schools are within five miles.

The school is in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more, according to its NCES locale (Suburb: Large).

Enrollment is down 10% from 2020-21, when Copper Basin had 616 students, to 2024-25, when it had 557. The ratio was 18.1:1 in 2020-21 and 16.1:1 in 2024-25.

The Copper Basin community page is open for posts about sports schedules, lunch menus, and spirit week. Anyone with firsthand experience at this school can post or comment.

Pinal County at a glance

View full county profile
Population
469,006
Census ACS
Median income
$80,266
Household, ACS
Bachelor's+
23%
Adults 25+
Poverty rate
8%
Below federal line
Schools in county
155
63,837 students

Quick facts

School name
Copper Basin
District
Florence Unified School District (4437)
Address
28682 N MAIN ST, San Tan Valley, AZ 85143
Phone
(480) 888-7500
County
Pinal County
Level
Elementary
Grade range
PK–08
Total enrollment
557
Teachers (FTE)
35
Student–teacher ratio
16.1:1
Locale
21-Suburb: Large
NCES ID
040292002436
Charter school
No
Virtual school
No

Related schools

Other schools in Florence Unified School District (4437)
Other schools in San Tan Valley
Nearby schools

Frequently asked questions

About Copper Basin
What is the total enrollment at Copper Basin?
Copper Basin enrolls approximately 557 students in grades PK-08.
What age range does Copper Basin serve?
Copper Basin serves students from grade PK through grade 08.
How many students per teacher at Copper Basin?
Approximately 16.1:1 students per teacher at Copper Basin.
What is the student diversity at Copper Basin?
Student demographics at Copper Basin are roughly 36% White, 47% Hispanic, 7% Black, 1% Asian, 5% Two or more.
Who oversees Copper Basin?
Copper Basin is overseen by Florence Unified School District (4437) in Pinal County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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