Summary:
Zip code 30152 in Kennesaw, Georgia, is served by two top-performing high schools—Harrison High School and Kennesaw Mountain High School—both part of the Cobb County School District, which together educate roughly 3,900 students in grades 9-12.
Harrison High School is the clear academic leader in this area, ranking 22nd out of 455 Georgia high schools (top 5%) with a 97.8% graduation rate. It posts exceptional proficiency scores—75.5% in Algebra I, 78.3% in Biology, and 66.2% in US History—all far exceeding state averages by 25-30 percentage points. Kennesaw Mountain High School is also a standout, ranking 39th statewide (top 10%) with a 94.5% graduation rate and strong proficiency in Algebra I (66.4%), Biology (73.4%), and US History (59.5%). While Harrison has been remarkably stable in its top-25 ranking for three straight years, Kennesaw Mountain has shown positive momentum, improving from 46th to 39th in the latest year. Both schools outperform the district and state in every tested subject, and both improved year-over-year across nearly all metrics.
The two schools serve different student populations, which is reflected in their resources. Kennesaw Mountain has a higher percentage of students qualifying for free/reduced lunch (40.6% vs. 16.0% at Harrison), and the district directs more funding there—$14,708 per student compared to $12,550 at Harrison—along with a lower student-teacher ratio (15.4:1 vs. 18.6:1). This targeted investment appears to support strong outcomes despite greater need. One area to watch: Kennesaw Mountain's chronic absenteeism rate (15.7%) exceeds the district average (14.2%), while Harrison's (11.5%) is well below it. Overall, families in this zip code have access to two elite schools that rank in the top 10% statewide, with Harrison offering slightly higher academic output and Kennesaw Mountain demonstrating strong results while serving a more diverse socioeconomic population.
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