Martinez Junior High

Martinez Junior High, a medium-sized middle school in Martinez, California, one of the schools within Martinez Unified, serves 843 students, covering grades 6 through 8. Enrollment runs roughly 28% bigger than the state mean of about 659.

Within Martinez Unified, which oversees 8 schools and 3,774 students, Martinez Junior High is one campus in the system.

On the student-mix side, Martinez Junior High lists that the most-represented group is White (44%), with the rest of the student body spread across multiple groups; the rest breaks down as 31% Hispanic, 14% multiracial, 8% Asian, 2% Black. That mix tracks the wider county fairly closely.

On the income-and-resources front, The school employs 36 full-time-equivalent teachers, for a student-teacher ratio near 23.3:1. The state averages around 20.7:1, so this campus is higher than the state norm typical. An estimated 33% of students are eligible for free or reduced-price lunch, often used as a Title I proxy. That share is south of Contra Costa County's rate of about 45%.

On a residual basis (actual vs predicted given the student mix), Martinez Junior High tracks the demographic baseline. The model predicts 60.0% given the school's FRL share; actual proficiency is 49.2%.

In the broader community, the surrounding county (Contra Costa County) logs that median household income runs about $127,229, roughly 45% of adults have completed at least a four-year degree, and roughly 6% of residents live below the federal poverty line. Across Contra Costa County's 280 public schools (combined enrollment of about 167,423 students), Martinez Junior High is one campus in the mix.

The closest other public school is Briones (Alternative), roughly 0.2 miles away. 8 of the 8 nearest public schools sit inside a five-mile radius. On composite proficiency, Martinez Junior High comes 3rd of 6 in the immediate cluster, above the nearby-schools average of 47.8%.

Martinez Junior High operates from a residential location.

Five-year trend. Over the past 7-year window, the student count edged down 17%: 1,017 students in 2018 compared to 843 in 2025.

Inside the community feed, the page collects discussion, questions, and updates around fundraisers, lost-and-found posts, and report-card season. Posting is open to anyone connected to the school.