Summary:
Zip code 30038 in Lithonia, Georgia, is home to two public high schools—Martin Luther King- Junior High School and Arabia Mountain High School - Academy of Engineering, Medicine & Environmental Science—serving roughly 2,594 students in grades 9-12 within the DeKalb County school district.
These two schools present a stark contrast in nearly every measure. Arabia Mountain High School is the clear standout, earning a 3-star rating for three consecutive years and reporting a perfect 100% graduation rate for 2024-2025—well above the state average of 87.2% and the district's 81.4%. Its students also perform far better on state assessments; for example, 58.4% were proficient in American Literature in 2024-2025, compared to just 17.6% at Martin Luther King- Junior High School. In Algebra I (2025-2026), Arabia Mountain's proficiency rate was 49.6% versus 22.0% at MLK Jr. High. Arabia Mountain also keeps chronic absenteeism at 15.3%, better than the state average, while MLK Jr. High struggles with a staggering 56.7% chronic absenteeism rate—more than triple the state figure.
By contrast, Martin Luther King- Junior High School has earned just 1-star ratings for three years, ranking in the bottom quartile statewide. Its graduation rate is 85.9%, and it falls below district averages in every tested subject. Notably, MLK Jr. High spends slightly more per student ($18,800 vs. $17,247) yet achieves far weaker results, suggesting that resources alone don't drive success. The single biggest differentiator appears to be attendance: the 41.4 percentage point gap in chronic absenteeism likely explains much of the academic divide. For parents, Arabia Mountain offers a proven track record of high achievement and near-perfect graduation, while MLK Jr. High faces serious challenges that families should weigh carefully, particularly around attendance and academic support.
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