Poston Butte High School

Located at 32375 N GANTZEL RD, in San Tan Valley, Arizona, Poston Butte High School is a high-enrollment high school that hosts 1,310 students (grades 7 through 12), overseen by Florence Unified School District (4437). By comparison, Arizona's public schools average about 631 students each, so Poston Butte High School sits 108% above that benchmark.

Florence Unified School District (4437) comprises 14 schools with combined enrollment of 8,731 students; Poston Butte High School is among them.

In terms of who attends, Poston Butte High School shows that the largest single group is Hispanic at 44%, but no single group is in the majority. Other groups include 40% White, 8% Black, 4% multiracial. By comparison, Pinal County as a whole is about 30% Hispanic, so the school skews considerably more Hispanic than its surroundings.

Looking at the economic backdrop, Poston Butte High School records 70 full-time-equivalent teachers, putting the student-to-teacher ratio at about 18.9:1. That figure is tighter than the state norm's 20.2:1 average.

Around the school, community-level numbers for Pinal County indicate median household earnings sit near $80,266, about 23% of the adult population holds a bachelor's degree or above, and the poverty rate sits near 8%. In all, Pinal County runs 155 public schools (combined enrollment of about 63,837 students), of which Poston Butte High School is one.

Champion San Tan is the nearest neighboring public school, about 0.8 miles from this campus. 8 of the 8 nearest public schools sit inside a five-mile radius.

The school occupies a rural site.

Looking at the recent track record. Poston Butte High School's enrollment has declined 4% since 2018, when it stood at 1,365 (now 1,310). White enrollment moved from 49% to 40% across the same window. Class-load math has grew: from 16.7:1 in 2018 to 18.9:1 in 2025.

On this page, recent activity here tends to focus on enrollment questions, classroom assignments, and PTA news. The community welcomes input from current and former families.