Brumby Elementary School

Brumby Elementary School, a high-enrollment elementary school in Marietta, Georgia, operated by Cobb County, hosts 963 students, covering grades pre-K through 5. Compared to the state average of about 605 students per school, that is 59% bigger than typical.

Cobb County comprises 110 schools with combined enrollment of 105,738 students; Brumby Elementary School is among them.

Demographically, Brumby Elementary School reports that the most-represented group is Black (54%), with the rest of the student body spread across multiple groups. Other groups include 29% Hispanic, 9% White, 6% multiracial, 2% Asian. By comparison, Cobb County as a whole is about 27% Black, so the school skews meaningfully more Black than its surroundings.

Looking at school resources, Staff filings list 89 full-time-equivalent teachers, which works out to roughly 10.8:1 students per teacher. The state averages around 13.3:1, so this campus is tighter than the state norm typical. About 78% of enrolled students meet the income threshold for free or reduced-price lunch, often used as a Title I proxy. That share is north of Cobb County's rate of about 53%.

On a residual basis (actual vs predicted given the student mix), Brumby Elementary School falls in the UNDERPERFORMING tier of the BeatsExpectations residual. Given its student profile, a typical campus would land near 36.9%; this one comes in at 22.4%, -14.5 points off the demographic line.

Across the wider county, Cobb County reports that median household income runs about $102,738, roughly 51% of adults have completed at least a four-year degree, and roughly 6% of residents live below the federal poverty line. Across Cobb County's 129 public schools (combined enrollment of about 116,609 students), Brumby Elementary School is one campus in the mix.

East Cobb Middle School is the nearest neighboring public school, about 0.1 miles from this campus. 8 of the 8 nearest public schools sit inside a five-mile radius. On composite proficiency, Brumby Elementary School comes 7th of 7 in the immediate cluster, below the nearby-schools average of 47.3%.

Brumby Elementary School operates from a residential location.

Trend over the last 7 years. Over the past 7-year window, the student count increased 4%: 922 students in 2018 compared to 963 in 2025. Class-load math has fell: from 12.4:1 in 2018 to 10.8:1 in 2025.

On this page, members of the Brumby Elementary School community share and discuss fundraisers, lost-and-found posts, and report-card season. Posting is open to anyone connected to the school.