Sun Terrace Elementary

Located at 2448 Floyd Ln., in Concord, California, Sun Terrace Elementary is a mid-sized primary school that enrolls 418 students (grades K through 5), part of Mt. Diablo Unified.

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

Demographically, Sun Terrace Elementary logs that the largest single group is Hispanic, at 60% of enrollment. The remainder looks like 15% White, 9% multiracial, 8% Asian, 5% Black. By comparison, Contra Costa County as a whole is about 28% Hispanic, so the school skews noticeably more Hispanic than its surroundings.

Looking at school resources, Staff filings list 16 full-time-equivalent teachers, which works out to roughly 25.5:1 students per teacher. Statewide, the average ratio sits near 22.3:1, putting Sun Terrace Elementary higher than the state norm the norm. About 74% of enrolled students meet the income threshold for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. That share is north of Contra Costa County's rate of about 45%.

On a demographically-adjusted basis, Sun Terrace Elementary performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 36.2%, the actual is 21.9%, a residual of -14.3 points.

In the broader community, census data for Contra Costa County shows the typical household earns roughly $127,229 per year, about 45% of the adult population holds a bachelor's degree or above, and census figures put the poverty rate at about 6%. Across Contra Costa County's 280 public schools (combined enrollment of about 167,423 students), Sun Terrace Elementary is one campus in the mix.

Nearest neighbor: Glenbrook Academy, around 0.5 miles off. Counting just inside five miles, 8 other public schools cluster around Sun Terrace Elementary. Ranking that nearby cluster on reported proficiency puts Sun Terrace Elementary at 2nd of 4; the average score across the group is 25.0%.

The campus sits in a commuter-belt setting.

Five-year trend. Sun Terrace Elementary's enrollment has decreased 14% since 2018, when it stood at 486 (now 418). Class-load math has rose: from 20.7:1 in 2018 to 25.5:1 in 2025.

Inside the community feed, posts here usually surface around school events, parent volunteer needs, and clubs. The community welcomes input from current and former families.