Mosaic Elementary

Mosaic Elementary is one of the big primary schools in Fairfax, Virginia, part of Fairfax County Public Schools, with 927 students on its rolls from grades pre-K through 6. By comparison, Virginia's public schools average about 499 students each, so Mosaic Elementary sits 86% bigger than that benchmark.

Across the 199 schools in Fairfax County Public Schools (179,323 students total), Mosaic Elementary accounts for its share of the district's footprint.

Demographically, Mosaic Elementary lists that 35% of students identify as White, with the remaining enrollment distributed across several groups. The remainder looks like 33% Asian, 17% Hispanic, 8% Black, 7% multiracial. The wider county runs roughly 49% White, putting the school's mix visibly less White than the area baseline.

On the resource side, On paper, Mosaic Elementary has 60 full-time-equivalent teachers, translating to a class-load average of around 15.5:1. The state averages around 13.8:1, so this campus is higher than the state norm typical. An estimated 27% of students are eligible for free or reduced-price lunch, a commonly cited indicator of low-income enrollment. Set against Fairfax County (around 37%), the school's rate is noticeably below typical.

On a demographically-adjusted basis, Mosaic Elementary sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 80.8%; this one delivers 85.5%.

In the broader community, community-level numbers for Fairfax County indicate the typical household earns roughly $153,637 per year, 65% of adults hold a bachelor's degree or higher, and census figures put the poverty rate at about 4%. Across Fairfax County's 222 public schools (combined enrollment of about 174,475 students), Mosaic Elementary is one campus in the mix.

Oakton High is the nearest neighboring public school, about 0.6 miles from this campus. 8 of the 8 nearest public schools sit inside a five-mile radius. On composite proficiency, Mosaic Elementary comes 6th of 9 in the immediate cluster, above the nearby-schools average of 81.6%.

Geographically, the school is in a bedroom-community area.

Looking at the recent track record. Looking back 7 years, enrollment at Mosaic Elementary has fell 13%, going from 1,065 students in 2018 to 927 in 2025. White enrollment moved from 41% to 35% across the same window. Class-load math has narrowed: from 17.1:1 in 2018 to 15.5:1 in 2025.

On allk12, 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.