Birney Elementary School

Birney Elementary School is one of the moderately sized elementary campuss in Marietta, Georgia, operated by Cobb County, with 725 students on its rolls from grades pre-K through 5.

Cobb County runs 110 schools in total, collectively educating 105,738 students. Birney Elementary School is one of those campuses.

On demographics, Birney Elementary School reports that the largest single group is Hispanic at 48%, but no single group is in the majority. The remainder breaks down as 41% Black, 5% multiracial, 3% White, 2% Asian. By comparison, Cobb County as a whole is about 15% Hispanic, so the school skews visibly more Hispanic than its surroundings.

Looking at school resources, The school currently runs with 67 full-time-equivalent teachers, for a student-teacher ratio near 10.8:1. The state averages around 13.3:1, so this campus is tighter than the state norm typical. Roughly 100% of students at Birney Elementary School qualify for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal. Set against Cobb County (around 53%), the school's rate is somewhat above typical.

On a residual basis (actual vs predicted given the student mix), Birney Elementary School performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 25.7%, the actual is 30.8%, a residual of +5.1 points.

Across the wider county, Cobb County reports that median household earnings sit near $102,738, about 51% of the adult population holds a bachelor's degree or above, and roughly 6% of residents live below the federal poverty line. In all, Cobb County runs 129 public schools (combined enrollment of about 116,609 students), of which Birney Elementary School is one.

Nearest neighbor: Osborne High School, around 1.1 miles off. Counting just inside five miles, 8 other public schools cluster around Birney Elementary School. Among the 8 schools in that immediate cluster with test data (this one included), Birney Elementary School ranks 1st on composite proficiency, ahead of the local average of 27.1%.

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

Trend over the last 7 years. Birney Elementary School's enrollment has fell 17% since 2018, when it stood at 873 (now 725). Class-load math has narrowed: from 13.0:1 in 2018 to 10.8:1 in 2025.

On allk12, the feed for Birney Elementary School typically covers science fair prep, picture-day reminders, and bus-route questions. Contributors range from current parents to recent graduates and teachers.