Mt. Diablo Unified School District

Mt. Diablo Unified serves 29,356 students across 52 schools in Contra Costa County, making it one of the larger districts in the East Bay. The district spans a wide range of communities — from suburban foothills to more densely populated corridors — and its school-by-school performance reflects that geographic and demographic spread.

Of the district's 52 schools, 47 are ranked, averaging 5.8 out of 10. That score places the typical Mt. Diablo campus squarely in the middle of the performance spectrum. It also signals something important for parents: outcomes here vary considerably depending on which school a child attends. A 5.8 district average with an 8.2 top performer is a wide spread — wide enough that campus selection carries real weight.

The elementary tier holds the district's clearest strengths. Westwood Elementary leads all 52 schools at 8.2 out of 10, the highest rating in the district. Bancroft Elementary (8.0) and Walnut Acres Elementary (7.9) follow closely, giving families in those zones access to above-average academics at the K–5 level. The secondary pipeline is competitive as well: Diablo View Middle and Northgate High each score 7.8 out of 10, both sitting well above the district's 5.8 average and representing the strongest pathway from middle school through graduation that Mt. Diablo currently offers.

For parents comparing options within the district's 52-school footprint, the practical question is attendance-zone specific. The 2.4-point gap between the district average and its top school is large enough to produce meaningfully different academic environments within the same district boundaries. Families prioritizing performance should identify which campuses fall inside their zone and, where open enrollment or magnet programs exist, evaluate whether those options expand access to the district's upper tier.