Summary:
Zip code 30004, covering parts of Alpharetta and Milton in Georgia’s northern Atlanta suburbs, is served by three high-performing public high schools—Denmark High School, Milton High School, and Cambridge High School—which together educate roughly 6,128 students in grades 9-12.
All three schools are strong academic performers, ranking in the top 10% of Georgia high schools. Denmark High School stands out as the efficiency leader: it has the highest graduation rate (97.6%), the lowest chronic absenteeism (6.2%—less than half the state average), and the lowest per-student spending ($11,368), yet still ranks #34 in the state. Cambridge High School is the fastest riser, jumping from #67 to #31 in two years, with the best student-teacher ratio (16.1:1) and the lowest poverty rate (10.7% free/reduced lunch). Milton High School, while still solid at #43, shows a three-year ranking decline (#32→#37→#43) and has a troubling chronic absenteeism rate of 24.4%—nearly four times Denmark’s and well above the state average of 17.7%.
Academically, all three schools dramatically outperform the state. Biology is a clear strength, with proficiency rates of 75-79% versus the state’s 47.2%. U.S. History is the relative weak spot, though Cambridge leads at 57.7% proficiency compared to Milton’s 43.6%. Algebra I scores improved sharply at both Cambridge and Milton (up 15 and 11 points respectively). Notably, Denmark High School achieves top results while spending 27% less per student than Cambridge High School, suggesting community and school culture—not just funding—drive success. While Denmark belongs to the higher-ranked Forsyth County district (#7) and the other two to Fulton County (#47), all three schools perform similarly, indicating the 30004 community itself is the primary factor in student achievement. For parents, this area offers excellent options, with Denmark and Cambridge leading the pack and Milton’s absenteeism being the main concern to watch.
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