Original Research by School Decision on Mammoth Elementary School
Mammoth Elementary School is the inactive elementary campus of the Mammoth-San Manuel Unified District, located in the small desert town of Mammoth in Pinal County. The school served a grade band recorded as M through M, which is an unusual descriptor and may reflect a data limitation or a specific grade configuration that is no longer operating. The school itself is classified as a regular public school and is no longer active; the district now operates two schools, First Avenue Elementary and San Manuel Jr. High/High School, after the closure of Avenue B School.
Because the school is inactive, current enrollment, demographics, and program information are not available. The most recent state testing data comes from the 2017‑18 school year, when Arizona administered the AzMERIT assessments for math and English language arts, along with AIMS Science for grade 4. In that year, all proficiency results for grades 3 through 6 in both math and ELA were suppressed by the state, meaning the number of tested students was too small to report publicly. The participation rate in those grades was reported at about half of enrolled students, which is low and may have also contributed to the suppression. Science results for grade 4 were similarly suppressed. No scaled scores or counts of proficient students were published. In short, no reliable academic performance data for Mammoth Elementary is available from that testing cycle, and no newer data exists because the school has since become inactive.
A parent should not expect to find an operating school at this address. The district's two remaining schools are located in San Manuel, about a short drive north of Mammoth. The town itself is a very small, predominantly Hispanic community that was historically a bedroom community for the San Manuel mine before the mine’s closure. The town has experienced a gradual population decline over recent decades, with a modest recent uptick in population estimates. The local economy is centered on retail, mining, and educational services. Housing in Mammoth is predominantly owner-occupied, with median property values that are low relative to national averages, but precise figures are not repeated here.
The district has faced financial scrutiny. A December 2024 Arizona Auditor General performance audit found that the district’s plant costs per pupil were significantly higher than peer districts, and transportation costs per rider were also elevated. The audit recommended improvements that could affect budget allocations and potentially program services. Families considering the district may want to follow up on any changes that result from that audit.
In sum, Mammoth Elementary School is no longer an active school, and the data that exists is too sparse to draw any conclusions about its past academic performance. For families in the Mammoth area, the pathway forward leads to First Avenue Elementary and San Manuel Jr. High/High School, both in San Manuel. Anyone looking at this school specifically should confirm their options with the district office.
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