John Muir Elementary

John Muir Elementary is one of the reasonably sized K-5 schools in Martinez, California, overseen by Martinez Unified, with 423 students on its rolls from grades K through 5.

John Muir Elementary is one of 8 schools operated by Martinez Unified, a district that teaches 3,774 students overall.

On demographics, John Muir Elementary records that 41% of students identify as White, with the remaining enrollment distributed across several groups. The remainder comes out to 31% Hispanic, 18% multiracial, 7% Asian, 3% Black. That composition is broadly in line with Contra Costa County as a whole.

Looking at the economic backdrop, John Muir Elementary reports 20 full-time-equivalent teachers, putting the student-to-teacher ratio at about 20.8:1. The state averages around 22.3:1, so this campus is tighter than the state norm typical. Around 38% of the student body qualifies for free or reduced-price meals, which schools and policymakers use as a rough income-mix signal.

Adjusting for the school's free-and-reduced-lunch share, John Muir Elementary tracks the demographic baseline. The model predicts 56.7% given the school's FRL share; actual proficiency is 48.8%.

Across the wider county, Contra Costa County reports that median household earnings sit near $127,229, 45% of adults hold a bachelor's degree or higher, and roughly 6% of residents live below the federal poverty line. John Muir Elementary is one of 280 public schools in Contra Costa County (combined enrollment of about 167,423 students).

Alhambra Senior High is the nearest neighboring public school, about 0.8 miles from this campus. Within five miles, there are 8 other public schools. Among the 6 schools in that immediate cluster with test data (this one included), John Muir Elementary ranks 4th on composite proficiency, higher than the local average of 47.8%.

The school occupies a residential site.

Over the past 7-year window. Looking back 7 years, enrollment at John Muir Elementary has changed only slightly, going from 433 students in 2018 to 423 in 2025. The White share of enrollment declined from 47% to 41% over that span.

In the discussion threads here, members of the John Muir Elementary community share and discuss classroom updates, athletics, and weather closures. Members of the school community can share what they know.