Oak Grove Middle

Oak Grove Middle is a mid-tier junior high in Concord, California, run under Mt. Diablo Unified. The school educates 681 students in grades 6 through 8.

Across the 50 schools in Mt. Diablo Unified (29,210 students total), Oak Grove Middle accounts for its share of the district's footprint.

On demographics, Oak Grove Middle records that Hispanic students make up the majority at 75%; the rest comes out to 10% Asian, 8% multiracial, 4% White, 3% Black. The wider county runs roughly 28% Hispanic, putting the school's mix noticeably more Hispanic than the area baseline.

In terms of school funding signals, Oak Grove Middle lists 33 full-time-equivalent teachers, putting the student-to-teacher ratio at about 20.6:1. That tracks the state average closely. Roughly 88% of students at Oak Grove Middle qualify for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal. That share is noticeably above Contra Costa County's rate of about 45%.

Adjusting for the school's free-and-reduced-lunch share, On a poverty-adjusted basis, Oak Grove Middle sits in the bottom 10% statewide. Predicted proficiency from the FRL regression is roughly 27.1%; actual is 11.8%, a gap of -15.3 points.

Across the wider county, the surrounding county (Contra Costa County) reports that the typical household earns roughly $127,229 per year, 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), Oak Grove Middle is one campus in the mix.

Nearest neighbor: Ygnacio Valley High, around 0.5 miles off. Within five miles, there are 8 other public schools. Among the 8 schools in that immediate cluster with test data (this one included), Oak Grove Middle ranks 7th on composite proficiency, beneath the local average of 35.3%.

Oak Grove Middle operates from an outer-ring location.

Over the past 7-year window. Over the past 7-year window, the student count edged down 12%: 773 students in 2018 compared to 681 in 2025. Over the same period, the Hispanic share ticked down from 85% to 75%. Class-load math has fell: from 22.1:1 in 2018 to 20.6:1 in 2025.

Inside the community feed, the page collects discussion, questions, and updates around fundraisers, lost-and-found posts, and report-card season. Anyone with firsthand experience at this school can post or comment.