Mt. McKinley

Mt. McKinley operates as a rural-scale four-year high school in Martinez, California, part of Contra Costa County Office of Education. Current enrollment sits at 42 students spanning grades 7 through 12. Compared to the state average of about 838 students per school, that is 95% smaller than typical.

Contra Costa County Office of Education runs 5 schools in total, collectively educating 292 students. Mt. McKinley is one of those campuses.

For racial and ethnic makeup, Mt. McKinley shows that 45% of students identify as Black, with the remaining enrollment distributed across several groups; the rest comes out to 40% Hispanic, 7% White, 2% Asian, 2% multiracial. The wider county runs roughly 8% Black, putting the school's mix noticeably more Black than the area baseline.

Looking at the economic backdrop, On paper, Mt. McKinley has 5 full-time-equivalent teachers, translating to a class-load average of around 8.4:1. Statewide, the average ratio sits near 18.2:1, putting Mt. McKinley tighter than the state norm the norm. An estimated 93% of students are eligible for free or reduced-price lunch, often used as a Title I proxy. That share is noticeably above Contra Costa County's rate of about 45%.

Around the school, ACS estimates for Contra Costa County put median household earnings sit near $127,229, 45% of adults hold a bachelor's degree or higher, and the poverty rate sits near 6%. In all, Contra Costa County runs 280 public schools (combined enrollment of about 167,423 students), of which Mt. McKinley is one.

Nearest neighbor: Hidden Valley Elementary, around 0.4 miles off. 8 of the 8 nearest public schools sit inside a five-mile radius.

Geographically, the school is in a residential area.

Looking at the recent track record. Looking back 7 years, enrollment at Mt. McKinley has edged down 69%, going from 135 students in 2018 to 42 in 2025. Over the same period, the Hispanic share edged up from 31% to 40%. Class-load math has pulled in: from 15.0:1 in 2018 to 8.4:1 in 2025.

On allk12, the page collects discussion, questions, and updates around pickup logistics, teacher feedback, and after-school programs. The community welcomes input from current and former families.