Poston Butte High School
Public
High Grades 7–12
Part of Florence Unified School District (4437)
32375 N GANTZEL RD, San Tan Valley, AZ 85143 · (480) 474-6100
Community ratings
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Academic performance
Math proficiency15%
State average 31.2%
Reading / language arts22%
State average 38.5%
EDFacts via Urban Institute Education Data Portal (SY2020-21)
At a glance
1,310Students enrolled
19:1Student–teacher ratio
RuralSetting
Regular SchoolSchool type
Enrollment by grade
Grade 9319
Grade 10361
Grade 11320
Grade 12310
Students
Hispanic · 44%577
White · 40%529
Black · 8%107
Two or more races · 4%46
American Indian/Alaska Native · 2%24
Asian · 1%16
Native Hawaiian/Pacific Islander · 1%11
Counts as reported to NCES; percentages are of students with a reported race/ethnicity.
Enrollment · last 5 years
1,467’20
1,434’21
1,393’22
1,423’23
1,310’24
Location
32375 N GANTZEL RD San Tan Valley
Neighbor reviews
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School facts from the U.S. Department of Education (NCES), 2024-2025 school year. Academic scores from the EDFacts via Urban Institute Education Data Portal (SY2020-21). Community ratings and reviews reflect neighbor opinions, not an official measure of school quality.