Pebblebrook High School

Located at 991 Old Alabama Rd SW, in Mableton, Georgia, Pebblebrook High School is a high-enrollment secondary school that serves 2,574 students (grades 9 through 12), part of Cobb County. That puts it 130% bigger than the typical public school in Georgia, which averages around 1,120 students.

Across the 110 schools in Cobb County (105,738 students total), Pebblebrook High School accounts for its share of the district's footprint.

On the student-mix side, Pebblebrook High School shows that 48% of students identify as Black, with the remaining enrollment distributed across several groups. Other groups include 45% Hispanic, 4% White, 2% multiracial. By comparison, Cobb County as a whole is about 27% Black, so the school skews visibly more Black than its surroundings.

On the income-and-resources front, The school currently runs with 151 full-time-equivalent teachers, for a student-teacher ratio near 17.1:1. That figure is higher than the state norm's 15.2:1 average. An estimated 96% of students are eligible for free or reduced-price lunch, often used as a Title I proxy. By comparison, Cobb County runs at roughly 53%, so the school's eligibility rate is meaningfully above the surrounding baseline.

Adjusting for the school's free-and-reduced-lunch share, Pebblebrook High School tracks the demographic baseline. The model predicts 27.5% given the school's FRL share; actual proficiency is 30.4%.

In the broader community, census data for Cobb County shows median household earnings sit near $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), Pebblebrook High School is one campus in the mix.

Clay-Harmony Leland Elementary School is the nearest neighboring public school, about 0.8 miles from this campus. Counting just inside five miles, 8 other public schools cluster around Pebblebrook High School. On composite proficiency, Pebblebrook High School comes 4th of 9 in the immediate cluster, above the nearby-schools average of 27.4%.

The school occupies a commuter-belt site.

Five-year trend. Over the past 7-year window, the student count remained close to its prior level: 2,570 students in 2018 compared to 2,574 in 2025. The Hispanic share of enrollment climbed from 33% to 45% over that span. The student-to-teacher ratio narrowed from 18.5:1 in 2018 to 17.1:1 today.

On the community side, the page collects discussion, questions, and updates around science fair prep, picture-day reminders, and bus-route questions. Anyone with firsthand experience at this school can post or comment.