Summary:
Zip code 30319, encompassing the Brookhaven area of metro Atlanta, is served by a single public high school: Cross Keys High School, part of the DeKalb County School District, which enrolls 1,748 students in grades 9–12.
Cross Keys High School is a large, high-poverty school where 100% of students qualify for free or reduced lunch, and per-student spending is a substantial $19,060 with a favorable 13.9:1 student-teacher ratio. The school has shown a clear upward trajectory in its state ranking, climbing from the 31st percentile in 2023–2024 to the 48th percentile in 2025–2026—a 79-position improvement. Academically, the most recent test scores show Algebra I proficiency at 38.8% (nearly matching the district's 38.0% and approaching the state's 48.1%), Biology at 38.8% (slightly below the district's 39.3%), and U.S. History at 36.9% (outperforming the district's 32.2%). The school also saw a strong 8-percentage-point jump in Algebra I proficiency year-over-year, suggesting effective math interventions.
However, significant challenges remain. The graduation rate of 73.7% trails the district (81.4%) and state (87.2%), while the dropout rate of 8.3% is nearly double the district rate and more than triple the state rate. Chronic absenteeism is a critical concern at 43.6%, far exceeding the district's 26.7% and the state's 17.7%. The school's most pressing academic weakness is English/Language Arts, with American Literature proficiency at just 20.4%—well below the district's 32.9% and state's 40.4%. Despite these hurdles, the combination of rising rankings, improved math scores, and competitive performance in Biology and U.S. History indicates a school making meaningful progress while addressing substantial socioeconomic and attendance-related obstacles.
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